| Package | Affected versions | Patched versions |
|---|---|---|
| mediawiki | ≥ 1.36.0, < 1.36.3≥ 1.37.0, < 1.37.1< 1.35.5 | 1.36.31.37.11.35.5 |
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. Special:CheckUserLog allows CheckUser XSS because of date mishandling, as demonstrated by an XSS payload in MediaWiki:October.
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