CVE-2022-36020
mediumpriority · track · 24EPSS 0.008 · 57 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
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weaknesses
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affected products (10)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-47m6-46mj-p235TYPO3 HTML Sanitizer Bypasses Cross-Site Scripting Protection2022-09-16ghsa · osvUS
> ### Meta > * CVSS: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C` (5.7) ### Problem Due to a parsing issue in upstream package [`masterminds/html5`](https://packagist.org/packages/masterminds/html5), malicious markup used in a sequence with special HTML comments cannot be filtered and sanitized. This allows to by-pass the cross-site scripting mechanism of `typo3/html-sanitizer`. ### Solution Update to `typo3/html-sanitizer` versions 1.0.7 or 2.0.16 that fix the problem described. ### Credits Thanks to David Klein who reported this issue, and to TYPO3 security team member Oliver Hader who fixed the issue.
also known as (3)
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sources
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references (14)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-36020/cnnvd
- https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493cnnvd
- https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235cnnvd
- https://packagist.org/packages/masterminds/html5cnnvd
- https://packagist.org/packages/typo3/html-sanitizercnnvd
- https://vigilance.fr/vulnerability/TYPO3-Core-Cross-Site-Scripting-via-HTML-Sanitizer-39261cnnvd
- https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493enisa_euvd
- https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235enisa_euvd
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