Vulnerability advisory
CVE-2022-36020
Bypass of Cross-Site Scripting Protection in typo3/html-sanitizer
Also known as GHSA-47m6-46mj-p235
Severity
- CVSS 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected versions
Repository
| Affected commits | Fixed by commit |
|---|---|
| GIT github.com/typo3/html-sanitizer ↗ | |
| ca1c30b9b5c160024257f456606b1f3f17138ca6 to before 37f1d10d762cf8019594ff596d9207f7551001ad | 37f1d10d762cf8019594ff596d9207f7551001ad |
| b32bbd462406f28d1fca4bde8a8cd8b49a4bdd39 to before 60bfdc7f9b394d0236e16ee4cea8372a7defa493 | 60bfdc7f9b394d0236e16ee4cea8372a7defa493 |
Also listed as affected (23)
| |
Description
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.
References
- Webpackagist.org/packages/masterminds/html5 ↗
- Webpackagist.org/packages/typo3/html-sanitizer ↗
- Advisorygithub.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36020.json ↗
- Advisorygithub.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235 ↗
- Advisorynvd.nist.gov/vuln/detail/CVE-2022-36020 ↗
- Fixgithub.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493 ↗