| Package | Affected versions | Patched versions |
|---|---|---|
| mediawiki | = 1.19= 1.19.0= 1.19.1= 1.19.2= 1.19.3= 1.19.4= 1.19.5= 1.19.6= 1.19.7= 1.20= 1.20.1= 1.20.2= 1.20.3= 1.20.4= 1.20.5= 1.20.6= 1.20.7= 1.21= 1.21.1= 1.21.2≤ 1.19.8 |
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 certain non-ASCII characters in CSS, as demonstrated using variations of "expression" containing (1) full width characters or (2) IPA extensions, which are converted and rendered by Internet Explorer.
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