BIT-joomla-2021-26032

    Dashboard / Vulnerabilities / BIT-joomla-2021-26032

    BIT-joomla-2021-26032

    Published: 3 Apr 2025Last Modified: 8 Sept 2026

    Summary: [20210501] - Core - Adding HTML to the executable block list of MediaHelper::canUpload

    Details: An issue was discovered in Joomla! 3.0.0 through 3.9.26. HTML was missing in the executable block list of MediaHelper::canUpload, leading to XSS attack vectors.

    References: https://developer.joomla.org/security-centre/852-20210501-core-adding-html-to-the-executable-block-list-of-mediahelper-canupload.html, https://nvd.nist.gov/vuln/detail/CVE-2021-26032

    Affected packages

    Package

    Name: joomla

    Purl: pkg:bitnami/joomla

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 3.0.0
    Fixed -None

    Affected versions

    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
    BIT-joomla-2021-26032 | CVE-DB