CVE-2023-38500
Last modified
CVE-2023-38500 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Typo3 | Html Sanitizer | >= 1.0.0, < 1.5.1 |
| Typo3 | Html Sanitizer | >= 2.0.0, < 2.1.2 |
References
- https://typo3.org/security/advisory/typo3-core-sa-2023-002Vendor Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2023-002Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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