Vulnerability 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.
Related Weaknesses (CWE)
References
- https://github.com/ChurchCRM/CRM/security/advisories/GHSA-5g52-rvjf-6wwf
- https://github.com/ChurchCRM/CRM/security/advisories/GHSA-v3hj-33xf-qx47
FAQ
What is CVE-2026-39940?
CVE-2026-39940 is a documented vulnerability. 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, woul...
How severe is CVE-2026-39940?
CVSS scoring is not yet available for CVE-2026-39940. Check NVD for updates.
Is there a patch for CVE-2026-39940?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.