VulnerabilityModified
CVE-2021-36128
An issue was discovered in the CentralAuth extension in MediaWiki through 1.36.
CRITICAL 9.8EPSS 1.50%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. Autoblocks for CentralAuth-issued suppression blocks are not properly implemented.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.50% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-755
- Affected
- mediawiki/mediawiki
- Source
- cve@mitre.org
References
- https://gerrit.wikimedia.org/r/q/I15d14c88a1e30df92c470bc191c4ee573172d4d1Patch, Vendor Advisory
- https://gerrit.wikimedia.org/r/q/I3e65690695313380c798b62edfda726b6e374f89Patch, Vendor Advisory
- https://phabricator.wikimedia.org/T281972Exploit, Issue Tracking, Patch, Vendor Advisory
- https://gerrit.wikimedia.org/r/q/I15d14c88a1e30df92c470bc191c4ee573172d4d1Patch, Vendor Advisory
- https://gerrit.wikimedia.org/r/q/I3e65690695313380c798b62edfda726b6e374f89Patch, Vendor Advisory
- https://phabricator.wikimedia.org/T281972Exploit, Issue Tracking, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.