CVE-2021-36125 — HIGH (7.5)

Q: How severe is CVE-2021-36125?

CVE-2021-36125 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-36125?

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:GlobalRenameRequest page is vulnerable to infinite loops and denial of service attacks when a user's current username is beyond an arbitrary maximum configuration value (MaxNameChars).

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mediawiki	Mediawiki	<= 1.36

Related Weaknesses (CWE)

CWE-835

References

https://gerrit.wikimedia.org/r/q/I97d8b3236b5abed8ba9a9c4d3ab5050c2e782c22PatchVendor Advisory
https://phabricator.wikimedia.org/T260865ExploitIssue TrackingPatch
https://gerrit.wikimedia.org/r/q/I97d8b3236b5abed8ba9a9c4d3ab5050c2e782c22PatchVendor Advisory
https://phabricator.wikimedia.org/T260865ExploitIssue TrackingPatch

FAQ

What is CVE-2021-36125?

CVE-2021-36125 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. The Special:GlobalRenameRequest page is vulnerable to infinite loops and denial of service attacks when a user's current...

How severe is CVE-2021-36125?

CVE-2021-36125 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-36125?

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