CVE-2022-23499
Vulnerability from cvelistv5
Published
2022-12-13 20:29
Modified
2024-08-03 03:43
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
HTML sanitizer is written in PHP, aiming to provide XSS-safe markup based on explicitly allowed tags, attributes and values. In versions prior to 1.5.0 or 2.1.1, malicious markup used in a sequence with special HTML CDATA sections cannot be filtered and sanitized due to a parsing issue in the upstream package masterminds/html5. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer. The upstream package masterminds/html5 provides HTML raw text elements (`script`, `style`, `noframes`, `noembed` and `iframe`) as DOMText nodes, which were not processed and sanitized further. None of the mentioned elements were defined in the default builder configuration, that's why only custom behaviors, using one of those tag names, were vulnerable to cross-site scripting. This issue has been fixed in versions 1.5.0 and 2.1.1.
References
security-advisories@github.comhttps://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-hvwx-qh2h-xcfjThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-hvwx-qh2h-xcfjThird Party Advisory
Impacted products
Vendor Product Version
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}


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