CVE-2026-58519

EUVD-2026-40901
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo Extension allows Stored XSS.

This issue affects Mediawiki - Cargo Extension: from * before 3.9.1.
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: 3.3%
Affected Products (NVD)
VendorProductVersion
mediawikicargo
𝑥
< 3.9.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1277612
https://phabricator.wikimedia.org/T424140
https://phabricator.wikimedia.org/T424140