CVE-2026-103444

EUVD-2026-90082
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki WikiForum extension allows Stored XSS.

This issue affects MediaWiki WikiForum extension: master.
Basic XSS
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
1.1 LOW
NETWORK
LOW
HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/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:N/AU:Y/R:U/V:D/RE:M/U:Amber
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 27.49%
Common Weakness Enumeration
References
https://gerrit.wikimedia.org/r/q/I7849ef0f9c3eff48fd63e47e5b8affc3b25bb4dd
https://phabricator.wikimedia.org/T414227