CVE-2026-35572 HIGH

CVE-2026-35572: SSRF via Referer header in ChurchCRM allows server-side HTTP/HTTPS requests to arbitrary hosts

Vendor Churchcrm
Product CRM
Weakness CWE-918 · SSRF
Published April 7, 2026
Last update April 7, 2026

CVSS base score

7.0/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 7, 2026 CVE published
April 7, 2026 Record updated