Advisory Published
Advisory Published

CVE-2023-47125: By-passing Cross-Site Scripting Protection in HTML Sanitizer

First published: Tue Nov 14 2023(Updated: )

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer. This vulnerability has been addressed in versions 1.5.3 and 2.1.4. Users are advised to upgrade. There are no known workarounds for this vulnerability.


Affected SoftwareAffected VersionHow to fix
TYPO3 HTML Sanitizer>=1.0.0<1.5.3
TYPO3 HTML Sanitizer>=2.0.0<2.1.4
Typo3 Typo3>=8.7.42<8.7.55
Typo3 Typo3>=9.5.29<9.5.44
Typo3 Typo3>=10.4.19<10.4.41
Typo3 Typo3>=11.3.2<11.5.33
Typo3 Typo3>=12.0.0<12.4.8

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Frequently Asked Questions

  • What is the severity of CVE-2023-47125?

    The severity of CVE-2023-47125 is medium with a CVSS score of 4.4.

  • How does CVE-2023-47125 affect the software?

    CVE-2023-47125 affects the `typo3/html-sanitizer` package version 2.0.0 to 2.1.3 and version 1.0.0 to 1.5.2.

  • How can I fix CVE-2023-47125?

    To fix CVE-2023-47125, upgrade the `typo3/html-sanitizer` package to version 2.1.4 or version 1.5.3.

  • What is the Common Weakness Enumeration (CWE) ID for CVE-2023-47125?

    The CWE ID for CVE-2023-47125 is CWE-79.

  • Where can I find more information about CVE-2023-47125?

    You can find more information about CVE-2023-47125 in the following references: [GitHub Security Advisory](, [GitHub Commit](, [TYPO3 Security Advisory](


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