TYPO3 HTML Sanitizer Bypasses Cross-Site Scripting Protection
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
> ### 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`](https://github.com/TYPO3/html-sanitizer). ### Solution Update to TYPO3 version 7.6.58 ELTS, 8.7.48 ELTS, 9.5.37 ELTS, 10.4.32 or 11.5.16 that fix the problem described above. ### Credits Thanks to David Klein who reported this issue, and to TYPO3 security team member Oliver Hader who fixed the issue. ### References * [TYPO3-CORE-SA-2022-011](https://typo3.org/security/advisory/typo3-core-sa-2022-011) * [GHSA-47m6-46mj-p235](https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235)
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | typo3/cms-core (Packagist) | 7.0.0 to before 7.6.58 | 7.6.58 | Patch available | GHSA-gqqf-g5r7-84vf |
| — | typo3/cms-core (Packagist) | 8.0.0 to before 8.7.48 | 8.7.48 | Patch available | GHSA-gqqf-g5r7-84vf |
| — | typo3/cms-core (Packagist) | 9.0.0 to before 9.5.37 | 9.5.37 | Patch available | GHSA-gqqf-g5r7-84vf |
| — | typo3/cms-core (Packagist) | 10.0.0 to before 10.4.32 | 10.4.32 | Patch available | GHSA-gqqf-g5r7-84vf |
| — | typo3/cms-core (Packagist) | 11.0.0 to before 11.5.16 | 11.5.16 | Patch available | GHSA-gqqf-g5r7-84vf |
- typo3/cms-core (Packagist) Vendor— Affected 7.0.0 to before 7.6.58 Fixed in 7.6.58 Patch available GHSA-gqqf-g5r7-84vf
- typo3/cms-core (Packagist) Vendor— Affected 8.0.0 to before 8.7.48 Fixed in 8.7.48 Patch available GHSA-gqqf-g5r7-84vf
- typo3/cms-core (Packagist) Vendor— Affected 9.0.0 to before 9.5.37 Fixed in 9.5.37 Patch available GHSA-gqqf-g5r7-84vf
- typo3/cms-core (Packagist) Vendor— Affected 10.0.0 to before 10.4.32 Fixed in 10.4.32 Patch available GHSA-gqqf-g5r7-84vf
- typo3/cms-core (Packagist) Vendor— Affected 11.0.0 to before 11.5.16 Fixed in 11.5.16 Patch available GHSA-gqqf-g5r7-84vf
Remediation
- Fix · GHSA-gqqf-g5r7-84vf typo3/cms-core (Packagist) Fixed in 7.6.58 Advisory →
- Fix · GHSA-gqqf-g5r7-84vf typo3/cms-core (Packagist) Fixed in 8.7.48 Advisory →
- Fix · GHSA-gqqf-g5r7-84vf typo3/cms-core (Packagist) Fixed in 9.5.37 Advisory →
- Fix · GHSA-gqqf-g5r7-84vf typo3/cms-core (Packagist) Fixed in 10.4.32 Advisory →
- Fix · GHSA-gqqf-g5r7-84vf typo3/cms-core (Packagist) Fixed in 11.5.16 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-gqqf-g5r7-84vf
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences