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
2.3 LOW
NETWORK
LOW
LOW
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 16.06%
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
not-affected
forky
1:1.43.11+dfsg-3
fixed
sid
1:1.43.11+dfsg-3
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