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OpenAdvisories
High · 7.0 CVE-2026-35572 EUVD-2026-19770

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

Published Apr 7, 2026 · Updated Apr 7, 2026 · Assigned by GitHub_M

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

VendorProductAffectedFixed
ChurchCRM CRM < 6.5.3 —

References