CVE-2021-28002

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    CVE-2021-28002

    Published: 19 Aug 2021Last Modified: 8 Jul 2026

    Summary:

    Details: A persistent cross-site scripting vulnerability was discovered in the Excerpt parameter in Textpattern CMS 4.9.0 which allows remote attackers to execute arbitrary code via a crafted payload entered into the URL field. The vulnerability is triggered by users visiting the 'Articles' page.

    References: https://www.linkedin.com/in/tushar-vaidya-2111s5/, https://www.exploit-db.com/exploits/49617

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 61f5e46ffa39394b0af15be3fcf2102be06816a9
    Fixed -None

    Affected versions

    4.9.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-28002 | CVE-DB