Vulnerability · Published Sep 30, 2026 · Assigned by wikimedia-foundation

CVE-2026-103445Stored XSS through PageForms #autoedit redirect links

Low 1.2

In plain English

A low-severity security flaw in MediaWiki Page_Forms extension from The Wikimedia Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 4.0)1.2Low

Exploit odds (30 days)0.3%top 76.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack tooling1Public PoC

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
The Wikimedia Foundation	MediaWiki Page_Forms extension	1.461.451.43

Weakness: CWE-80 · Vector: 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/S:N/AU:Y/R:U/V:D/RE:M/U:Amber

In plain English

Official description

Affected products (as reported)

References