Vulnerability Details : CVE-2021-36127
Potential exploit
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).
Products affected by CVE-2021-36127
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-36127
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-36127
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2021-36127
-
The product stores sensitive information without properly limiting read or write access by unauthorized actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-36127
-
https://gerrit.wikimedia.org/r/q/I4e4dbcad61e1d4f6fd8b038bf63d19c69081a8ec
I4e4dbcad61e1d4f6fd8b038bf63d19c69081a8ec · Gerrit Code ReviewPatch;Vendor Advisory
-
https://phabricator.wikimedia.org/T285190
⚓ T285190 Special:GlobalUserRights reveals existence of globally suppressed usersExploit;Issue Tracking;Patch;Vendor Advisory
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