CVE-2022-23499

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Summary

CVECVE-2022-23499
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-12-13 21:15:00 UTC
Updated2023-11-07 03:44:00 UTC
DescriptionHTML 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.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Typo3 Html Sanitizer All All All All
Application Typo3 Html Sanitizer All All All All

References

ReferenceSourceLinkTags
By-passing Cross-Site Scripting Protection in HTML Sanitizer · Advisory · TYPO3/html-sanitizer · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 691011 Free Berkeley Software Distribution (FreeBSD) Security Update for typo3 (d9e154c9-7de9-11ed-adca-080027d3a315)
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