Vulnerability Description
TYPO3 HTML Sanitizer is an HTML sanitizer, written in PHP, aiming to provide cross-site-scripting-safe markup based on explicitly allowed tags, attributes and values. Starting in version 1.0.0 and prior to versions 1.5.1 and 2.1.2, due to an encoding issue in the serialization layer, malicious markup nested in a `noscript` element was not encoded correctly. `noscript` is disabled in the default configuration, but might have been enabled in custom scenarios. This allows bypassing the cross-site scripting mechanism of TYPO3 HTML Sanitizer. Versions 1.5.1 and 2.1.2 fix the problem.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Typo3 | Html Sanitizer | >= 1.0.0, < 1.5.1 |
Related Weaknesses (CWE)
References
- https://github.com/TYPO3/html-sanitizer/commit/e3026f589fef0be8c3574ee3f0a0bfbe3Patch
- https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-59jf-3q9v-rh6gVendor Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2023-002Vendor Advisory
- https://github.com/TYPO3/html-sanitizer/commit/e3026f589fef0be8c3574ee3f0a0bfbe3Patch
- https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-59jf-3q9v-rh6gVendor Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2023-002Vendor Advisory
FAQ
What is CVE-2023-38500?
CVE-2023-38500 is a vulnerability with a CVSS score of 4.7 (MEDIUM). TYPO3 HTML Sanitizer is an HTML sanitizer, written in PHP, aiming to provide cross-site-scripting-safe markup based on explicitly allowed tags, attributes and values. Starting in version 1.0.0 and pri...
How severe is CVE-2023-38500?
CVE-2023-38500 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-38500?
Check the references section above for vendor advisories and patch information. Affected products include: Typo3 Html Sanitizer.