Vulnerability · Published Apr 7, 2026 · Assigned by GitHub_M
CVE-2026-35572SSRF via Referer header in ChurchCRM allows server-side HTTP/HTTPS requests to arbitrary hosts
High 7.0
In plain English
A high-severity server-side request forgery 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 24% of all known vulnerabilities).
Severity (CVSS 4.0)7.0High
Exploit odds (30 days)0.3%top 76.3% 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 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.
Affected products (as reported)
Weakness: CWE-918 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
References
- https://github.com/ChurchCRM/CRM/security/advisories/GHSA-44x3-28jv-mrwq x_refsource_CONFIRM