Description
In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, Special:UserRights exposes the existence of hidden users.
References (4)
Core 4
Core References
Vendor Advisory x_refsource_misc
https://meta.wikimedia.org/wiki/Special:UserRights
Mailing List, Vendor Advisory x_refsource_confirm
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
Mailing List, Vendor Advisory x_refsource_misc
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
Scores
CVSS v3
5.3
EPSS
0.0037
EPSS Percentile
58.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
Status
published
Products (3)
fedoraproject/fedora
33
mediawiki/core
1.31.0 - 1.31.9Packagist
mediawiki/mediawiki
< 1.31.10
Published
Sep 27, 2020
Tracked Since
Feb 18, 2026