CVE-2026-103445 Stored XSS through PageForms #autoedit redirect links
Stored XSS in MediaWiki PageForms allows attackers to inject scripts via autoedit redirect links, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-103445?
CVE-2026-103445 is a low-severity cross-site scripting vulnerability in The Wikimedia Foundation MediaWiki Page_Forms extension, published on 30 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
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.
Weakness: CWE-80
Which versions are affected by CVE-2026-103445?
How do I fix CVE-2026-103445?
No fix has been published for CVE-2026-103445 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-103445 being exploited?
There is no known exploitation of CVE-2026-103445 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-rcgv-pmpf-7frr.