🛡️ CVE-2021-36128 — mediawiki

🔴 CVSS 9.5 — Critical ✅ No Known Exploit OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. Autoblocks for CentralAuth-issued suppression blocks are not properly implemented.

Affected software

CVE-2021-36128 is recorded against 1 package.

  • mediawiki

Timeline and source

Published on 6 March 2024 and last revised on 3 April 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

gerrit.wikimedia.org (Web)
gerrit.wikimedia.org (Web)
phabricator.wikimedia.org (Web)
nvd.nist.gov (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-03-06
Updated 2026-06-02
Modified 2025-04-03
Fix URL N/A

Affected Packages

Software From version Fixed in
mediawiki

Similar Threats

Exploit Protection

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CVE-2021-36128 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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