The checkCss function in includes/Sanitizer.php in the wikitext parser in...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058588.html
- https://bugzilla.wikimedia.org/show_bug.cgi?id=28450
- http://www.vupen.com/english/advisories/2011/0978
- http://www.mediawiki.org/wiki/Special:Code/MediaWiki/85856
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059235.html
- http://www.securityfocus.com/bid/47354
- http://secunia.com/advisories/44142
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058910.html
- http://www.vupen.com/english/advisories/2011/1151
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66738
- http://www.debian.org/security/2011/dsa-2366
- https://bugzilla.redhat.com/show_bug.cgi?id=696360
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-April/000096.html
- http://www.vupen.com/english/advisories/2011/1100
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059232.html
- https://bugzilla.redhat.com/show_bug.cgi?id=695577
- http://openwall.com/lists/oss-security/2011/04/13/15
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Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.