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Security Advisories: GSA_kwCzR0hTQS1odnd4LXFoMmgteGNmas4AAwSV
TYPO3 HTML Sanitizer vulnerable to Cross-Site Scripting
Due to a parsing issue in the upstream package
masterminds/html5, malicious markup used in a sequence with special HTML CDATA sections cannot be filtered and sanitized. This allows bypassing the cross-site scripting mechanism of
Besides that, the upstream package
masterminds/html5 provides HTML raw text elements (
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.
typo3/html-sanitizer versions 1.5.0 or 2.1.1 that fix the problem described.
Source: GitHub Advisory Database
Published: 12 months ago
Updated: 10 months ago
CVSS Score: 6.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Identifiers: GHSA-hvwx-qh2h-xcfj, CVE-2022-23499
Fixed in: 12.1.1, 11.5.20, 10.4.33
Fixed in: 2.1.1, 1.5.0