CVE-2021-28001

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    CVE-2021-28001

    Published: 19 Aug 2021Last Modified: 9 Jul 2026

    Summary:

    Details: A cross-site scripting vulnerability was discovered in the Comments parameter in Textpattern CMS 4.8.4 which allows remote attackers to execute arbitrary code via a crafted payload entered into the URL field. The vulnerability is triggered by users visiting https://site.com/articles/welcome-to-your-site#comments-head.

    References: https://www.exploit-db.com/exploits/49616

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- eb17367ddffc08ab9d7638b47b3ab700f232cd1e
    Fixed -None

    Affected versions

    4.8.4

    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-2021-28001 | CVE-DB