CVE-2021-36127 — MEDIUM (4.3)

Q: How severe is CVE-2021-36127?

CVE-2021-36127 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-36127?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.

Vulnerability 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 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Mediawiki	Mediawiki	<= 1.36

Related Weaknesses (CWE)

CWE-922

References

https://gerrit.wikimedia.org/r/q/I4e4dbcad61e1d4f6fd8b038bf63d19c69081a8ecPatchVendor Advisory
https://phabricator.wikimedia.org/T285190ExploitIssue TrackingPatch
https://gerrit.wikimedia.org/r/q/I4e4dbcad61e1d4f6fd8b038bf63d19c69081a8ecPatchVendor Advisory
https://phabricator.wikimedia.org/T285190ExploitIssue TrackingPatch

FAQ

What is CVE-2021-36127?

CVE-2021-36127 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 fo...

How severe is CVE-2021-36127?

CVE-2021-36127 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-2021-36127?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.