CVE-2022-36020

The typo3/html-sanitizer package is an HTML sanitizer, written in PHP, aiming to provide XSS-safe markup based on explicitly allowed tags, attributes and values. Due to a parsing issue in the upstream package `masterminds/html5`, malicious markup used in a sequence with special HTML comments cannot be filtered and sanitized. This allows for a bypass of the cross-site scripting mechanism of `typo3/html-sanitizer`. This issue has been addressed in versions 1.0.7 and 2.0.16 of the `typo3/html-sanitizer` package. Users are advised to upgrade. There are no known workarounds for this issue.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
GitHub_MCNA
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 28%
VendorProductVersion
typo3html_sanitizer
1.0.0 ≤
𝑥
< 1.0.7
typo3html_sanitizer
2.0.0 ≤
𝑥
< 2.0.16
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493
https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235
https://packagist.org/packages/masterminds/html5
https://packagist.org/packages/typo3/html-sanitizer
https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493
https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235
https://packagist.org/packages/masterminds/html5
https://packagist.org/packages/typo3/html-sanitizer