CVE-2026-35574 ChurchCRM has a Stored XSS in Person Profile - Add a Note

High 7.3 Published Updated

Authenticated users can inject JavaScript via notes, leading to session hijacking and data theft in ChurchCRM.

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-2026-35574?

CVE-2026-35574 is a high-severity cross-site scripting vulnerability in Churchcrm Churchcrm, published on 7 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. Prior to 6.5.3, a stored Cross-Site Scripting (XSS) vulnerability in ChurchCRM's Note Editor allows authenticated users with note-adding permissions to execute arbitrary JavaScript code in the context of other users' browsers, including administrators. This can lead to session hijacking, privilege escalation, and unauthorized access to sensitive church member data. This vulnerability is fixed in 6.5.3.

Weakness: CWE-79

Which versions are affected by CVE-2026-35574?

It affects 1 product.

Products include Churchcrm Churchcrm.

How do I fix CVE-2026-35574?

No fix has been published for CVE-2026-35574 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-2026-35574 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35574 exists.

All Churchcrm Churchcrm vulnerabilities

Sources

Also known as GHSA-cx82-8xrh-7f5c.

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