CVE-2026-103445
Stored XSS through PageForms #autoedit redirect links
- Published
- Sep 30, 2026
- Updated
- Sep 30, 2026
- Assigning CNA
- wikimedia-foundation
- Evidence observed
- Oct 3, 2026
Primary CVSS
nvd · CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/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:AmberLow · next 30 days
- Percentile
- 22.8%
- Model date
- Oct 25, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki Page_Forms extension allows Stored XSS. This issue affects MediaWiki Page_Forms extension: 1.46, 1.45, and 1.43.
Sources
Report summary and local proof-of-concept for CVE-2026-103445, a stored XSS in MediaWiki PageForms #autoedit via javascript: redirect URLs.
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