VIGNETTE CORPORATION EMPLOYEESTOCK PURCHASE PLAN (AS AMENDEDJANUARY 26, 2001; OCTOBER 31, 2001; MARCH 20, 2002;AND DECEMBER 27, 2005) TABLE OF CONTENTS

EXHIBIT 10.24

VIGNETTE CORPORATION

EMPLOYEE STOCK PURCHASE PLAN

(AS AMENDED JANUARY 26, 2001; OCTOBER 31, 2001;

MARCH 20, 2002; AND DECEMBER 27, 2005)

TABLE OF CONTENTS

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VIGNETTE CORPORATION

EMPLOYEE STOCK PURCHASE PLAN

SECTION 1. PURPOSE OF THE PLAN.

The Plan was adopted by the Board on September 9, 1998, to be effective as of the date of the IPO, and was amended on January 26, 2001, October 31, 2001, March 20, 2002, and December 27, 2005. The purpose of the Plan is to provide Eligible Employees with an opportunity to increase their proprietary interest in the success of the Corporation by purchasing Common Stock from the Corporation on favorable terms and to pay for such purchases through payroll deductions. The Plan is intended to qualify under Section 423 of the Code.

SECTION 2. ADMINISTRATION OF THE PLAN.

(a) Committee Composition. The Plan shall be administered by the Committee. The Committee shall consist exclusively of one or more directors of the Corporation, who shall be appointed by the Board.

(b) Committee Responsibilities. The Committee shall interpret the Plan and make all other policy decisions relating to the operation of the Plan. The Committee may adopt such rules, guidelines and forms as it deems appropriate to implement the Plan. The Committee’s determinations under the Plan shall be final and binding on all persons.

SECTION 3. ENROLLMENT AND PARTICIPATION.

(a) Offering Periods. While the Plan is in effect, two overlapping Offering Periods shall commence in each calendar year. Beginning at the IPO, the Offering Periods shall consist of the 24-month periods commencing on each February 25 and August 25, except that the first Offering Period shall commence on the date of the IPO and end on February 24, 2001. Beginning February 25, 2001, the Offering Periods shall commence on each February 1 and August 1; the Offering Period beginning February 25, 2001 shall end on January 31, 2003. Beginning February 1, 2006, the Offering Periods shall consist of the 12-month periods commencing on each February 1 and August 1.

(b) Contribution Periods. While the Plan is in effect, two Contribution Periods shall commence in each calendar year. Beginning at the IPO, the Contribution Periods shall consist of the six-month periods commencing on each February 25 and August 25, except that the first Contribution Period shall commence on the date of the IPO and end on August 24, 1999. Beginning February 25, 2001, the Contribution Periods shall commence on each February 1 and August 1; the period beginning February 25, 2001 shall end on July 31, 2001.

(c) Enrollment. Any individual who, on the day prior to the first day of an Offering Period, qualifies as an Eligible Employee may elect to become a Participant in the Plan for such Offering Period by executing the enrollment form prescribed for this purpose by the Committee. The enrollment form shall be filed with the Corporation at the prescribed location not later than one business day prior to the commencement of such Offering Period. Each time the Participant disposes of shares acquired under the Plan, the Participant shall promptly notify the Corporation.

(d) Duration of Participation. Once enrolled in the Plan, a Participant shall continue to participate in the Plan until he or she ceases to be an Eligible Employee, withdraws from the Plan under Section 5(a) or reaches the end of the Contribution Period in which his or her employee contributions were discontinued under Section 4(d) or 8(b). A Participant who discontinued employee contributions under Section 4(d) or withdrew from the Plan under Section 5(a) may again become a Participant, if he or she then is an Eligible Employee, by following the procedure described in Subsection (c) above. A Participant whose employee contributions were discontinued automatically under Section 8(b) shall automatically resume participation at the beginning of the earliest Contribution Period ending in the next calendar year, if he or she then is an Eligible Employee.

(e) Applicable Offering Period. For purposes of calculating the Purchase Price under Section 7(b), the applicable Offering Period shall be determined as follows:

SECTION 4. EMPLOYEE CONTRIBUTIONS.

(a) Frequency of Payroll Deductions. A Participant may purchase shares of Common Stock under the Plan solely by means of payroll deductions. Payroll deductions, as designated by the Participant pursuant to Subsection (b) below, shall occur on each payday during participation in the Plan.

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(b) Amount of Payroll Deductions. An Eligible Employee shall designate on the enrollment form the portion of his or her Compensation that he or she elects to have withheld for the purchase of Common Stock under all employee stock purchase plans maintained by the Corporation or its subsidiaries. Beginning February 1, 2006, such portion shall be a whole percentage of the Eligible Employee’s Compensation, from 1% to 15% or such lesser percentage established by the Committee from time to time.

(c) Changing Withholding Rate. If a Participant wishes to change the rate of payroll withholding, he or she may do so by filing a new enrollment form with the Corporation at the prescribed location at any time. The new withholding rate shall be effective as soon as reasonably practicable after such form has been received by the Corporation. Beginning February 1, 2006, (i) the new withholding rate shall be a whole percentage of the Eligible Employee’s Compensation, from 1% to 15%; (ii) a Participant may decrease his withholding rate during a current Contribution Period by filing a new enrollment form with the Corporation at the prescribed location; and (iii) a Participant will not be permitted to increase his withholding rate during a Contribution Period but may increase his withholding rate for the next Contribution Period by filing a new enrollment form with the Corporation at the prescribed location during the month prior to the commencement of the next Contribution Period for such Offering Period.

(d) Discontinuing Payroll Deductions. If a Participant wishes to discontinue employee contributions entirely, he or she may do so by filing a new enrollment form with the Corporation at the prescribed location at any time. Payroll withholding shall cease as soon as reasonably practicable after such form has been received by the Corporation. (In addition, employee contributions may be discontinued automatically pursuant to Section 8(b).) A Participant who has discontinued employee contributions may resume such contributions by filing a new enrollment form with the Corporation at the prescribed location. Payroll withholding shall resume as soon as reasonably practicable after such form has been received by the Corporation. Beginning February 1, 2006, any Participant who has elected to participate at a contribution rate less than 1% shall be withdrawn from the Plan in accordance with Section 5.

(e) Limit on Number of Elections. Participants may make changes to their contribution percentage under Subsection (c) or (d) above any number of times during any Contribution Period, subject to the Committee’s discretion to establish limits periodically.

SECTION 5. WITHDRAWAL FROM THE PLAN.

(a) Withdrawal. A Participant may elect to withdraw from the Plan by filing the prescribed form with the Corporation at the prescribed location at any time before the last day of a Contribution Period. Effective for Offering Periods commencing on or after February 1, 2006, a Participant will be deemed to have elected to withdraw from the Plan if the Participant elects to discontinue employee contributions entirely in accordance with Section 4(d). As soon as reasonably practicable after the Participant has elected, or has been deemed to have elected, to withdraw from the Plan, payroll deductions shall cease and the entire amount credited to the Participant’s Plan Account shall be refunded to him or her in cash, without interest. No partial withdrawals shall be permitted.

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(b) Re-Enrollment After Withdrawal. A former Participant who has withdrawn from the Plan shall not be a Participant until he or she re-enrolls in the Plan under Section 3(c). Re-enrollment may be effective only at the commencement of an Offering Period.

SECTION 6. CHANGE IN EMPLOYMENT STATUS.

(a) Termination of Employment. Termination of employment as an Eligible Employee for any reason, including death, shall be treated as an automatic withdrawal from the Plan under Section 5(a). (A transfer from one Participating Corporation to another shall not be treated as a termination of employment.)

(b) Leave of Absence. For purposes of the Plan, employment shall not be deemed to terminate when the Participant goes on a military leave, a sick leave or another bona fide leave of absence, if the leave was approved by the Corporation in writing. Employment, however, shall be deemed to terminate 90 days after the Participant goes on a leave, unless a contract or statute guarantees his or her right to return to work. Employment shall be deemed to terminate in any event when the approved leave ends, unless the Participant immediately returns to work.

(c) Death. In the event of the Participant’s death, the amount credited to his or her Plan Account shall be paid to a beneficiary designated by him or her for this purpose on the prescribed form or, if none, to the Participant’s estate. Such form shall be valid only if it was filed with the Corporation at the prescribed location before the Participant’s death.

SECTION 7. PLAN ACCOUNTS AND PURCHASE OF SHARES.

(a) Plan Accounts. The Corporation shall maintain a Plan Account on its books in the name of each Participant. Whenever an amount is deducted from the Participant’s Compensation under the Plan, such amount shall be credited to the Participant’s Plan Account. Amounts credited to Plan Accounts shall not be trust funds and may be commingled with the Corporation’s general assets and applied to general corporate purposes. No interest shall be credited to Plan Accounts.

(b) Purchase Price. The Purchase Price for each share of Common Stock purchased at the close of a Contribution Period shall be the lower of:

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(c) Number of Shares Purchased. As of the last day of each Contribution Period, each Participant shall be deemed to have elected to purchase the number of shares of Common Stock calculated in accordance with this Subsection (c), unless the Participant has previously elected to withdraw from the Plan in accordance with Section 5(a). The amount then in the Participant’s Plan Account shall be divided by the Purchase Price, and the number of shares that results shall be purchased from the Corporation with the funds in the Participant’s Plan Account. The foregoing notwithstanding, no Participant shall purchase more than 200 shares of Common Stock with respect to any Contribution Period nor more than the amounts of Common Stock set forth in Sections 8(b) and 13(a). The Committee may determine with respect to all Participants that any fractional share, as calculated under this Subsection (c), shall be (i) rounded down to the next lower whole share or (ii) credited as a fractional share.

(d) Available Shares Insufficient. In the event that the aggregate number of shares that all Participants elect to purchase during a Contribution Period exceeds the maximum number of shares remaining available for issuance under Section 13(a), then the number of shares to which each Participant is entitled shall be determined by multiplying the number of shares available for issuance by a fraction, the numerator of which is the number of shares that such Participant has elected to purchase and the denominator of which is the number of shares that all Participants have elected to purchase.

(e) Issuance of Common Stock. Certificates representing the shares of Common Stock purchased by a Participant under the Plan shall be issued to him or her as soon as reasonably practicable after the close of the applicable Contribution Period, except that the Committee may determine that such shares shall be held for each Participant’s benefit by a broker designated by the Committee (unless the Participant has elected that certificates be issued to him or her). Shares may be registered in the name of the Participant or jointly in the name of the Participant and his or her spouse as joint tenants with right of survivorship or as community property. The Committee may impose such restrictions on the transfer or resale of issued shares as it may deem advisable.

(f) Unused Cash Balances. An amount remaining in the Participant’s Plan Account that represents the Purchase Price for any fractional share shall be carried over in the Participant’s Plan Account to the next Contribution Period. Any amount remaining in the Participant’s Plan Account that represents the Purchase Price for whole shares that could not be purchased by reason of Subsection (c) above, Section 8(b) or Section 13(a) shall be refunded to the Participant in cash, without interest.

(g) Stockholder Approval. Any other provision of the Plan notwithstanding, no shares of Common Stock shall be purchased under the Plan unless and until the Corporation’s stockholders have approved the adoption of the Plan.

SECTION 8. LIMITATIONS ON STOCK OWNERSHIP.

(a) Five Percent Limit. Any other provision of the Plan notwithstanding, no Participant shall be granted a right to purchase Common Stock under the Plan if such Participant, immediately after his or her election to purchase such Common Stock, would own stock

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possessing more than 5% of the total combined voting power or value of all classes of stock of the Corporation or any parent or Subsidiary of the Corporation. For purposes of this Subsection (a), the following rules shall apply:

(b) Dollar Limit. Any other provision of the Plan notwithstanding, no Participant shall purchase Common Stock under the Plan at a rate which, when aggregated with his or her rights to purchase stock under all other employee stock purchase plans of the Corporation or any Subsidiary, exceeds $25,000 in Fair Market Value (or such other limit as may be imposed by the Code) for each calendar year in which the Participant participates in the applicable Offering Period (the “Dollar Limit”). The Dollar Limit shall be applied as follows:

Shares purchased under this Plan and all other employee stock purchase plans of the Corporation or any parent or Subsidiary of the Corporation shall be allocated to the earliest calendar year

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Dollar Limit available. The provisions of this Subsection (b) shall be construed to maximize the number of shares a Participant may purchase within the limitations of Treas. Regulation Section 1.423-2(i) and not to be more limiting than that Regulation. For purposes of this Subsection (b), the Fair Market Value of Common Stock shall be determined in each case as of the beginning of the Offering Period in which such Common Stock is purchased. Employee stock purchase plans not described in section 423 of the Code shall be disregarded. If a Participant is precluded by this Subsection (b) from purchasing additional Common Stock under the Plan, then his or her employee contributions shall automatically be discontinued and shall resume at the beginning of the earliest Contribution Period ending in the next calendar year (if he or she then is an Eligible Employee).

SECTION 9. RIGHTS NOT TRANSFERABLE.

The rights of any Participant under the Plan, or any Participant’s interest in any Common Stock or moneys to which he or she may be entitled under the Plan, shall not be transferable by voluntary or involuntary assignment or by operation of law, or in any other manner other than by beneficiary designation or the laws of descent and distribution. If a Participant in any manner attempts to transfer, assign or otherwise encumber his or her rights or interest under the Plan, other than by beneficiary designation or the laws of descent and distribution, then such act shall be treated as an election by the Participant to withdraw from the Plan under Section 5(a).

SECTION 10. NO RIGHTS AS AN EMPLOYEE.

Nothing in the Plan or in any right granted under the Plan shall confer upon the Participant any right to continue in the employ of a Participating Corporation for any period of specific duration or interfere with or otherwise restrict in any way the rights of the Participating Corporations or of the Participant, which rights are hereby expressly reserved by each, to terminate his or her employment at any time and for any reason, with or without cause.

SECTION 11. NO RIGHTS AS A STOCKHOLDER.

A Participant shall have no rights as a stockholder with respect to any shares of Common Stock that he or she may have a right to purchase under the Plan until such shares have been purchased on the last day of the applicable Contribution Period.

SECTION 12. SECURITIES LAW REQUIREMENTS.

Shares of Common Stock shall not be issued under the Plan unless the issuance and delivery of such shares comply with (or are exempt from) all applicable requirements of law, including (without limitation) the Securities Act of 1933, as amended, the rules and regulations promulgated thereunder, state securities laws and regulations, and the regulations of any stock exchange or other securities market on which the Corporation’s securities may then be traded. In order to reflect any restrictions on disposition of the shares acquired under the Plan, the stock certificates for the purchased shares may be endorsed with one or more restrictive legends

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SECTION 13. STOCK OFFERED UNDER THE PLAN.

(a) Authorized Shares. The aggregate number of shares of Common Stock available for purchase under the Plan shall be 450,000^• (pre-split) subject to adjustment pursuant to this Section 13. In addition, the number of shares of Common Stock available for purchase under the Plan shall automatically increase by (A) the lesser of (i) 2% of the total number of shares of Common Stock then outstanding or (ii) 450,000^• (pre-split) shares on January 1, 2000, January 1, 2001, and January 1, 2002 or (B) such lesser number determined by the Board or Compensation Committee each year.

(b) Anti-Dilution Adjustments. The aggregate number of shares of Common Stock offered under the Plan, the number of shares by which the share reserve is to increase each calendar year, and the price of shares that any Participant has elected to purchase shall be adjusted proportionately by the Committee for any increase or decrease in the number of outstanding shares of Common Stock resulting from a subdivision or consolidation of shares or the payment of a stock dividend, any other increase or decrease in such shares effected without receipt or payment of consideration by the Corporation, the distribution of the shares of a Subsidiary to the Corporation’s stockholders or a similar event. The 200-share limitation described in Section 7(c) shall be adjusted proportionately by the Committee for any increase or decrease in the number of outstanding shares of Common Stock resulting from a subdivision or consolidation of shares or the payment of a stock dividend, any other increase or decrease in such shares effected without receipt or payment of consideration by the Corporation, the distribution of the shares of a Subsidiary to the Corporation’s stockholders or a similar event only to the extent that the Committee expressly provides for such an adjustment.

(c) Reorganizations. Any other provision of the Plan notwithstanding, immediately prior to the effective time of a Corporate Reorganization, the Offering Period and Contribution Period then in progress shall terminate and shares shall be purchased pursuant to Section 7. The Plan shall in no event be construed to restrict in any way the Corporation’s right to undertake a dissolution, liquidation, merger, consolidation or other reorganization.

SECTION 14. AMENDMENT OR DISCONTINUANCE.

The Board shall have the right to amend, suspend or terminate the Plan at any time and without notice. Except as provided in Section 13, any increase in the aggregate number of shares of Common Stock to be issued under the Plan shall be subject to approval by a vote of the stockholders of the Corporation. In addition, any other amendment of the Plan shall be subject to approval by a vote of the stockholders of the Corporation to the extent required by an applicable law or regulation. The Board approved an amendment to the Plan on October 31, 2001, to clarify the operation of the $25,000 limitation of Section 8(b), decrease the per-person share limit of Section 8(a), limit the automatic operation of the adjustment provisions of Section 13(b) in the case of the per-person share limit, and permit enrollment with a contribution percentage of 0% to

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be effective upon approval by the Board. On March 20, 2002, the Board approved an amendment to the Plan’s Limit on Number of Elections specified in Section 4(e); Participants may make changes to their contribution percentage under Section 4(c) or (d) any number of times during any Contribution Period, subject to the Committee’s discretion to establish limits periodically. On December 27, 2005, the Board approved amendments to decrease the Offering Period length to 12-months for any Offering Period commencing on or after February 1, 2006; to limit the ability to increase withholding rates during an Offering Period to the month prior to the commencement of the next Contribution Period with such increase effective for the next Contribution Period; to change the minimum contribution percentage to 1%; and to provide for automatic withdrawal of the Participant upon the Participant’s election during a Contribution Period to discontinue employee contributions entirely.

SECTION 15. DEFINITIONS.

(a) “Board” means the Board of Directors of the Corporation, as constituted from time to time.

(b) “Code” means the Internal Revenue Code of 1986, as amended.

(c) “Committee” means a committee of the Board, as described in Section 2.

(d) “Common Stock” means the common stock of the Corporation.

(e) “Contribution Period” means a six-month period during which contributions may be made toward the purchase of Common Stock under the Plan, as determined pursuant to Section 3(b).

(f) “Corporation” means Vignette Corporation, a Delaware corporation.

(g) “Compensation” means (i) the total compensation paid in cash to a Participant by a Participating Corporation, including salaries, wages, bonuses, incentive compensation, commissions, overtime pay and shift premiums, plus (ii) any pre-tax contributions made by the Participant under section 401(k) or 125 of the Code. “Compensation” shall exclude all non-cash items, moving or relocation allowances, cost-of-living equalization payments, car allowances, tuition reimbursements, imputed income attributable to cars or life insurance, severance pay, fringe benefits, contributions or benefits received under employee benefit plans, income attributable to the exercise of stock options, and similar items. The Committee shall determine whether a particular item is included in Compensation.

(h) “Corporate Reorganization” means:

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(i) “Eligible Employee” means any employee of a Participating Corporation if his or her customary employment is for more than five months per calendar year and for more than 20 hours per week. The foregoing notwithstanding, an individual shall not be considered an Eligible Employee if his or her participation in the Plan is prohibited by the law of any country which has jurisdiction over him or her or if he or she is subject to a collective bargaining agreement that does not provide for participation in the Plan.

(j) “Exchange Act” means the Securities Exchange Act of 1934, as amended.

(k) “Fair Market Value” means the market price of Common Stock, determined by the Committee as follows:

Whenever possible, the determination of Fair Market Value by the Committee shall be based on the prices reported in The Wall Street Journal or as reported directly to the Corporation by Nasdaq or a stock exchange. Such determination shall be conclusive and binding on all persons.

(l) “IPO” means the initial offering of Common Stock to the public pursuant to a registration statement filed by the Corporation with the Securities and Exchange Commission.

(m) “Offering Period” means a 24-month period with respect to which the right to purchase Common Stock may be granted under the Plan, as determined pursuant to Section 3(a); provided, however, that effective for Offering Periods commencing on or after February 1, 2006, “offering period” means a 12-month period with respect to which the right to purchase Common Stock may be granted under the Plan, as determined pursuant to Section 3(a).

(n) “Participant” means an Eligible Employee who elects to participate in the Plan, as provided in Section 3(c).

(o) “Participating Corporation” means (i) the Corporation and (ii) each present or future Subsidiary designated by the Committee as a Participating Corporation.

(p) “Plan” means this Vignette Corporation Employee Stock Purchase Plan, as it may be amended from time to time.

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(q) “Plan Account” means the account established for each Participant pursuant to Section 7(a).

(r) “Purchase Price” means the price at which Participants may purchase Common Stock under the Plan, as determined pursuant to Section 7(b).

(s) “Subsidiary” means any corporation (other than the Corporation) in an unbroken chain of corporations beginning with the Corporation, if each of the corporations other than the last corporation in the unbroken chain owns stock possessing 50% or more of the total combined voting power of all classes of stock in one of the other corporations in such chain.

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