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.
Affected products
churchcrm: churchcrm
References2
- github.com/ChurchCRM/CRM/security/advisories/GHSA-cx82-8xrh-7f5c ExploitVendor Advisory
- github.com/ChurchCRM/CRM/security/advisories/GHSA-cx82-8xrh-7f5c ExploitVendor Advisory
Metrics
- CVSS 3.1
-
8.7
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N - EPSS — exploit probability
- 0% percentile: 25 · as of 12 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.