GHSA-47m6-46mj-p235
TYPO3 HTML Sanitizer Bypasses Cross-Site Scripting Protection
Quick fix
GHSA-47m6-46mj-p235 — typo3/html-sanitizer: upgrade to the fixed version with the command below.
composer require typo3/html-sanitizer:^1.0.7Details
> ### 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.
Are you affected?
Enter the version of the package you're using.
Affected packages
1.0.0Fixed in: 1.0.7composer require typo3/html-sanitizer:^1.0.72.0.0Fixed in: 2.0.16composer require typo3/html-sanitizer:^2.0.1610.0.0Fixed in: 10.4.32composer require typo3/cms-core:^10.4.3211.0.0Fixed in: 11.5.16composer require typo3/cms-core:^11.5.16References
- https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2022-36020[ADVISORY]
- https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2022-36020.yaml[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2022-36020.yaml[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/html-sanitizer/CVE-2022-36020.yaml[WEB]
- https://github.com/TYPO3/html-sanitizer[PACKAGE]
- https://packagist.org/packages/masterminds/html5[WEB]
- https://packagist.org/packages/typo3/html-sanitizer[WEB]
- https://typo3.org/security/advisory/typo3-core-sa-2022-011[WEB]