Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki
before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows
remote attackers to conduct cross-site scripting (XSS) attacks via a
\b (backspace) character in CSS.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[MediaWiki-announce] 20131114 MediaWiki Security Release: 1.21.3, 1.20.8 and 1.19.9
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