XSS in Churchcrm
CVE-2026-39941
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (18.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Churchcrm
- Churchcrm Crm — versions < 7.1.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-39941?
- CVE-2026-39941 is a medium-severity vulnerability in Churchcrm, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-09.
- How severe is CVE-2026-39941?
- Medium severity. CVSS v3 base score is 6.1 out of 10.