CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
EPSS
Percentile
74.1%
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.