Vulnerability · Published Apr 9, 2026 · Assigned by GitHub_M
CVE-2026-39941ChurchCRM has an XSS vulnerability
Medium 5.3
In plain English
A medium-severity cross-site scripting in CRM from ChurchCRM. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).
Severity (CVSS 4.0)5.3Medium
Exploit odds (30 days)0.3%top 80.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
ChurchCRM is an open-source church management system. Prior to 7.1.0, an XSS vulnerability allows attacker-supplied input sent via a the EName and EDesc parameters in EditEventAttendees.php to be rendered in a page without proper output encoding, enabling arbitrary JavaScript execution in victims' browsers. This vulnerability is fixed in 7.1.0.
Affected products (as reported)
Weakness: CWE-79, CWE-80 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References
- https://github.com/ChurchCRM/CRM/security/advisories/GHSA-4mqw-9jww-2c58 x_refsource_CONFIRM
- https://github.com/ChurchCRM/CRM/commit/d2f7f36e2ea342419026ddc4bc4ea8efbf5e7e98 x_refsource_MISC
- https://github.com/ChurchCRM/CRM/releases/tag/7.1.0 x_refsource_MISC