CVE-2021-31545

medium

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.

References

https://phabricator.wikimedia.org/T71367

https://gerrit.wikimedia.org/r/q/I8d5ed9ca84282ee50832035af86123633fc88293

Details

Source: Mitre, NVD

Published: 2021-04-22

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

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