Vulnerability Description
ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the database backup restore functionality extracts uploaded archive contents and copies files from the Images/ directory into the web-accessible document root using recursiveCopyDirectory(), which performs no file extension filtering. An authenticated administrator can upload a crafted backup archive containing a PHP webshell inside the Images/ directory, which is then written to a publicly accessible path and executable via HTTP requests, resulting in remote code execution as the web server user. The restore endpoint also lacks CSRF token validation, enabling exploitation through cross-site request forgery targeting an authenticated administrator. This issue has been fixed in version 7.2.0.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/ChurchCRM/CRM/commit/68be1d12bc4cc1429575ae797ef05efe47030d39
- https://github.com/ChurchCRM/CRM/pull/8610
- https://github.com/ChurchCRM/CRM/security/advisories/GHSA-2932-77f9-62fx
FAQ
What is CVE-2026-40484?
CVE-2026-40484 is a vulnerability with a CVSS score of 9.1 (CRITICAL). ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the database backup restore functionality extracts uploaded archive contents and copies files from the Images/ directo...
How severe is CVE-2026-40484?
CVE-2026-40484 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-40484?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.