Medium severity5.3NVD Advisory· Published Apr 22, 2021· Updated Jun 17, 2026
CVE-2021-31545
CVE-2021-31545
Description
An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. The page_recent_contributors leaked the existence of certain deleted MediaWiki usernames, related to rev_deleted.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5- Range: <=1.35.2
- Range: <=1.35.2
- MediaWiki/AbuseFilterdescription
Patches
Vulnerability mechanics
References
2- gerrit.wikimedia.org/r/q/I8d5ed9ca84282ee50832035af86123633fc88293nvdIssue TrackingVendor Advisory
- phabricator.wikimedia.org/T71367nvdThird Party Advisory
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