CVE-2023-38500 – typo3/html-sanitizer

Package

Manager: composer
Name: typo3/html-sanitizer
Vulnerable Version: >=1.0.0 <1.5.1 || >=2.0.0 <2.1.2

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00341 pctl0.56096

Details

By-passing Cross-Site Scripting Protection in HTML Sanitizer > ### CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C` (4.4) ### Problem 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`](https://packagist.org/packages/typo3/html-sanitizer). ### Solution Update to `typo3/html-sanitizer` versions 1.5.1 or 2.1.2 that fix the problem described. ### Credits Thanks to David Klein and Yaniv Nizry who reported this issue, and to TYPO3 security team members Oliver Hader and Benjamin Franzke who fixed the issue. ### References * [TYPO3-CORE-SA-2023-002](https://typo3.org/security/advisory/typo3-core-sa-2023-002)

Metadata

Created: 2023-07-25T18:27:16Z
Modified: 2023-07-25T18:27:16Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-59jf-3q9v-rh6g/GHSA-59jf-3q9v-rh6g.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-59jf-3q9v-rh6g
Finding: F008
Auto approve: 1