Improper handling of insufficient permissions or privileges vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension on Linux, MacOS, and Windows allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Mediawiki - WikiLambda Extension: before 1.47.0.
https://phabricator.wikimedia.org/T435085
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikiLambda/+/1326392
Published: 2026-09-23
Updated: 2026-09-23
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
Base Score: 6.3
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
Severity: Medium