GHSA-mm79-jhqm-9j54

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    GHSA-mm79-jhqm-9j54

    Published: 14 Nov 2023Last Modified: 10 Sept 2026

    Summary: Bypassing Cross-Site Scripting Protection in TYPO3 HTML Sanitizer

    Details: > ### CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C` (4.4) ### Problem DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of [`typo3/html-sanitizer`](https://packagist.org/packages/typo3/html-sanitizer). ### Solution Update to `typo3/html-sanitizer` versions 1.5.3 or 2.1.4 that fix the problem described. ### Credits Thanks to Yaniv Nizry and Niels Dossche who reported this issue, and to TYPO3 core & security team member Oliver Hader who fixed the issue. ### References * [TYPO3-CORE-SA-2023-007](https://typo3.org/security/advisory/typo3-core-sa-2023-007) * [Context & Details at `masterminds/html5`](https://github.com/Masterminds/html5-php/issues/241)

    References: https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54, https://nvd.nist.gov/vuln/detail/CVE-2023-47125, https://github.com/TYPO3/html-sanitizer/commit/b8f90717251d968c49dc77f8c1e5912e2fbe0dff, https://github.com/TYPO3/html-sanitizer, https://typo3.org/security/advisory/typo3-core-sa-2023-007

    Affected packages

    Package

    Name: typo3/html-sanitizer

    Purl: pkg:composer/typo3/html-sanitizer

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 1.0.0
    Fixed -1.5.3

    Affected versions

    v1.0.0
    v1.0.1
    v1.0.2
    v1.0.3
    v1.0.4
    v1.0.5
    v1.0.6
    v1.0.7

    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
    GHSA-mm79-jhqm-9j54 | CVE-DB