Medium severity6.1NVD Advisory· Published Jun 29, 2023· Updated Jun 17, 2026
CVE-2023-37255
CVE-2023-37255
Description
An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. In Special:CheckUser, a check of the "get edits" type is vulnerable to HTML injection through the User-Agent HTTP request header.
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Affected products
4Patches
Vulnerability mechanics
References
1- phabricator.wikimedia.org/T333569nvdExploitIssue Tracking
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