CVE-2026-58031

EUVD-2026-41012
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki.

 This vulnerability is associated with program files resources/src/mediawiki.Special.Apisandbox/ApiSandboxLayout.Js.



This issue affects MediaWiki: from 1.46.0-rc.0 before 1.46.0.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 5.41%
Affected Products (NVD)
VendorProductVersion
mediawikimediawiki
1.46.0:rc0
𝑥
= Vulnerable software versions
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/T426889