SSRF in Churchcrm

CVE-2026-35572

ChurchCRM is an open-source church management system. Prior to 6.5.3, it is possible to trigger server-side HTTP/HTTPS requests to arbitrary hosts (SSRF) by supplying a crafted URL in the Referer request header. The server subsequently makes an outbound request to the attacker-controlled domain, confirmed via OAST. This vulnerability is fixed in 6.5.3.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.003 (21.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-35572?
CVE-2026-35572 is a medium-severity vulnerability in Churchcrm, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.0/10. Published 2026-04-07.
How severe is CVE-2026-35572?
Medium severity. CVSS v3 base score is 6.0 out of 10.