CVE-2025-6926

EUVD-2025-19884
Improper Authentication vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows : Bypass Authentication.This issue affects Mediawiki - CentralAuth Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA-ADPADP
8.8 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 21%
Debian logo
Debian Releases
Debian Product
Codename
mediawiki
bookworm
1:1.39.17-1~deb12u1
fixed
bookworm (security)
1:1.39.17-1~deb12u1
fixed
bullseye
vulnerable
bullseye (security)
1:1.35.13-1+deb11u6
fixed
forky
1:1.43.6+dfsg-2
fixed
sid
1:1.43.6+dfsg-2
fixed
trixie
1:1.43.6+dfsg-1~deb13u1
fixed
trixie (security)
1:1.43.6+dfsg-1~deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mediawiki
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
oracular
ignored
plucky
ignored
questing
needs-triage
Common Weakness Enumeration
References
https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1165117
https://phabricator.wikimedia.org/T389010
https://lists.debian.org/debian-lts-announce/2025/07/msg00012.html