Vulnerability Description
An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. The Special:AbuseFilter/examine form allowed for the disclosure of suppressed MediaWiki usernames to unprivileged users.
CVSS Score
4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mediawiki | Mediawiki | <= 1.35.2 |
Related Weaknesses (CWE)
References
- https://gerrit.wikimedia.org/r/q/I6063c02fa261c4cc0e6dbbb2db4e111eb85912c2Issue TrackingVendor Advisory
- https://gerrit.wikimedia.org/r/q/I71a6d521bd12931ce60eec4d2dc35af19146000fIssue TrackingVendor Advisory
- https://phabricator.wikimedia.org/T274152Third Party Advisory
- https://gerrit.wikimedia.org/r/q/I6063c02fa261c4cc0e6dbbb2db4e111eb85912c2Issue TrackingVendor Advisory
- https://gerrit.wikimedia.org/r/q/I71a6d521bd12931ce60eec4d2dc35af19146000fIssue TrackingVendor Advisory
- https://phabricator.wikimedia.org/T274152Third Party Advisory
FAQ
What is CVE-2021-31549?
CVE-2021-31549 is a vulnerability with a CVSS score of 4.3 (MEDIUM). An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. The Special:AbuseFilter/examine form allowed for the disclosure of suppressed MediaWiki usernames to unprivileged use...
How severe is CVE-2021-31549?
CVE-2021-31549 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-31549?
Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.