XSS in The Wikimedia Foundation MediaWiki Page Forms Extension
CVE-2026-103445
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.
Published · last modified .
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- The Wikimedia Foundation MediaWiki Page Forms Extension — versions 1.43, 1.45, 1.46
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2026-103445?
- CVE-2026-103445 is a vulnerability in The Wikimedia Foundation MediaWiki Page Forms Extension, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). Published 2026-09-30.
- Is CVE-2026-103445 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.