Incorrect Authorization vulnerability in The Wikimedia Foundation Mediawiki - OAuth Extension allows Authentication Bypass.This issue affects Mediawiki - OAuth Extension: from 1.39 through 1.43.
https://phabricator.wikimedia.org/T336113
https://gerrit.wikimedia.org/r/q/I27b61af2cdfb862a42432e7a87b863033d540cfc
Published: 2025-04-11
Updated: 2025-04-15
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
Severity: Medium
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
Base Score: 10
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Severity: Critical
EPSS: 0.00068