Vulnerability Monitor

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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.

Published

2022-09-13T17:15:08.250

Last Modified

2024-11-21T07:12:11.947

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.1 (MEDIUM)

Weaknesses

Type: Primary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	typo3	html_sanitizer	< 1.0.7	Yes
Application	typo3	html_sanitizer	< 2.0.16	Yes

References

https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493 Patch, Third Party Advisory ([email protected])
https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235 Third Party Advisory ([email protected])
https://packagist.org/packages/masterminds/html5 Third Party Advisory ([email protected])
https://packagist.org/packages/typo3/html-sanitizer Product, Third Party Advisory ([email protected])
https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://packagist.org/packages/masterminds/html5 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://packagist.org/packages/typo3/html-sanitizer Product, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)