VULNERABILITY INTELLIGENCE

CVE-2021-31545

CVSS score5.3 MEDIUM

EPSS probability0.82%

CISA KEVNot currently listed

Published2021-04-22

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Weakness classification

nvd@nist.gov: CWE-200

Primary references

cve@mitre.org — Issue Tracking, Vendor Advisory
cve@mitre.org — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory