CVE-2011-1579
The checkCss function in includes/Sanitizer.php in the wikitext parser in MediaWiki before 1.16.3 does not properly validate Cascading Style Sheets (CSS) token sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks or obtain sensitive information by using the \2f\2a and \2a\2f hex strings to surround CSS comments.
- EPSS
- 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mediawiki:mediawiki
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058588.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058910.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059232.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059235.html
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-April/000096.html