typo3/html-sanitizer · Security
Bypassing Cross-Site Scripting Protection in TYPO3 HTML Sanitizer
- GHSA ID
- GHSA-mm79-jhqm-9j54
- CVE ID
- CVE-2023-47125
- Severity
- medium
- Published
- Updated
- CVSS
- 4.7 · CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
- CVSS v3
- 4.7 · CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Description
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
DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer.
Solution
Update to typo3/html-sanitizer versions 1.5.3 or 2.1.4 that fix the problem described.
Credits
Thanks to Yaniv Nizry and Niels Dossche who reported this issue, and to TYPO3 core & security team member Oliver Hader who fixed the issue.
References
CWEs
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2023-47125 ↗
- https://github.com/TYPO3/html-sanitizer/commit/b8f90717251d968c49dc77f8c1e5912e2fbe0dff ↗
- https://typo3.org/security/advisory/typo3-core-sa-2023-007 ↗
- https://github.com/advisories/GHSA-mm79-jhqm-9j54 ↗