VulnerabilityModified
CVE-2021-36127
The Special:GlobalUserRights page provided search results which, for a suppressed MediaWiki user, were different than for any other user, thus easily disclosing suppressed accounts (which are supposed to be completely hidden).
MEDIUM 4.3EPSS 0.74%
Does this matter?
Lower severity and a low EPSS score (0.74%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. The Special:GlobalUserRights page provided search results which, for a suppressed MediaWiki user, were different than for any other user, thus easily disclosing suppressed accounts (which are supposed to be completely hidden).
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.74% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-922
- Affected
- mediawiki/mediawiki
- Source
- cve@mitre.org
References
- https://gerrit.wikimedia.org/r/q/I4e4dbcad61e1d4f6fd8b038bf63d19c69081a8ecPatch, Vendor Advisory
- https://phabricator.wikimedia.org/T285190Exploit, Issue Tracking, Patch, Vendor Advisory
- https://gerrit.wikimedia.org/r/q/I4e4dbcad61e1d4f6fd8b038bf63d19c69081a8ecPatch, Vendor Advisory
- https://phabricator.wikimedia.org/T285190Exploit, Issue Tracking, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.