CVE-2026-39940
MEDIUM EPSS 18.5%
Published Apr 13, 20262mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 4.0
Published Apr 13, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago
Description
ChurchCRM is an open-source church management system. Prior to 7.0.0, it was possible in many places across the ChurchCRM application to create a link that, when visited by an authenticated user, would redirect them to any URL chosen by an attacker if they clicked 'Cancel' button on the page. For this write-up the DonatedItemEditor.php will be used as an example, however wherever all instances of 'linkBack' should be assessed. This vulnerability is fixed in 7.0.0.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
18.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-601
References 2
- github.com https://github.com/ChurchCRM/CRM/security/advisories/GHSA-5g52-rvjf-6wwf
- github.com https://github.com/ChurchCRM/CRM/security/advisories/GHSA-v3hj-33xf-qx47
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.