Vulnerability in MediaWiki
CVE-2021-36127
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
References
- phabricator.wikimedia.org/T285190 (Exploit, Patch, Issue Tracking, Vendor Advisory)
- gerrit.wikimedia.org/r/q/I4e4dbcad61e1d4f6fd8b038bf63d19c69081a8ec (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-36127?
- CVE-2021-36127 is a medium-severity vulnerability in MediaWiki, classified under CWE-922. CVSS score: 4.3/10. Published 2021-07-02.
- How severe is CVE-2021-36127?
- Medium severity. CVSS v3 base score is 4.3 out of 10.