CVE-2026-40483 ChurchCRM: Stored XSS in PledgeEditor.php via Donation Comment Field
Authenticated users with Finance permissions can inject malicious scripts into donation comments, leading to stored XSS when viewed by others.
- 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-2026-40483?
CVE-2026-40483 is a medium-severity cross-site scripting vulnerability in ChurchCRM CRM, published on 17 Apr 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
ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the Pledge Editor renders donation comment values directly into HTML input value attributes without escaping via htmlspecialchars(). An authenticated user with Finance permissions can inject HTML attribute-breaking characters and event handlers into the comment field, which are stored in the database and execute in the browser of any user who subsequently opens the pledge record for editing, resulting in stored XSS. This issue has been fixed in version 7.2.0.
Which versions are affected by CVE-2026-40483?
How do I fix CVE-2026-40483?
No fix has been published for CVE-2026-40483 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-2026-40483 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40483 exists.
Sources
Also known as GHSA-wjmf-w8gj-rx7g.