CVE-2026-5266

EUVD-2026-29157
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Echo.

 This vulnerability is associated with program files includes/Api/ApiEchoNotifications.Php.



This issue affects Echo: from * before 1.43.7, 1.44.4, 1.45.2.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 15.97%
Debian logo
Debian Releases
Debian Product
Codename
mediawiki
bookworm
1:1.39.17-1+deb12u2
fixed
bookworm (security)
1:1.39.17-1+deb12u2
fixed
bullseye
1:1.35.13-1+deb11u2
fixed
bullseye (security)
1:1.35.13-1+deb11u7
fixed
forky
1:1.43.9+dfsg-1
fixed
sid
1:1.43.9+dfsg-1
fixed
trixie
1:1.43.9+dfsg-1~deb13u1
fixed
trixie (security)
1:1.43.9+dfsg-1~deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mediawiki
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
Common Weakness Enumeration
References
https://phabricator.wikimedia.org/T420154