CVE-2026-105950 getformwork URI Sanitizer DomSanitizer.php sanitizeNodeAttribute cross site scripting
Remote attackers can execute arbitrary scripts via the formaction argument in the URI Sanitizer component of getformwork formwork.
- 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-2026-105950?
CVE-2026-105950 is a medium-severity cross-site scripting vulnerability in getformwork formwork, published on 6 Oct 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
A security vulnerability has been detected in getformwork formwork up to 2.3.12. Impacted is the function DomSanitizer::sanitizeNodeAttribute of the file formwork/src/Sanitizer/DomSanitizer.php of the component URI Sanitizer. Such manipulation of the argument formaction leads to cross site scripting. The attack may be launched remotely. Upgrading to version 2.3.13 is recommended to address this issue. The name of the patch is 729701e59c5886685c5a1d477bdc3035e41f18b1. Upgrading the affected component is advised.
Which versions are affected by CVE-2026-105950?
How do I fix CVE-2026-105950?
No fix has been published for CVE-2026-105950 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-2026-105950 being exploited?
There is no known exploitation of CVE-2026-105950 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-3j63-cg5x-w8f2, GHSA-p78q-v3pr-p87j.