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).
References (2)
Core 2
Core References
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://phabricator.wikimedia.org/T260865
Patch, Vendor Advisory x_refsource_misc
https://gerrit.wikimedia.org/r/q/I97d8b3236b5abed8ba9a9c4d3ab5050c2e782c22
Scores
CVSS v3
7.5
EPSS
0.0027
EPSS Percentile
50.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-835
Status
published
Products (1)
mediawiki/mediawiki
< 1.36
Published
Jul 02, 2021
Tracked Since
Feb 18, 2026