Vulnerability Description
ChurchCRM is an open-source church management system. Prior to version 5.21.0, a pre-authentication remote code execution vulnerability in ChurchCRM's setup wizard allows unauthenticated attackers to inject arbitrary PHP code during the initial installation process, leading to complete server compromise. The vulnerability exists in `setup/routes/setup.php` where user input from the setup form is directly concatenated into a PHP configuration template without any validation or sanitization. Any parameter in the setup form can be used to inject PHP code that gets written to `Include/Config.php`, which is then executed on every page load. This is more severe than typical authenticated RCE vulnerabilities because it requires no credentials and affects the installation process that administrators must complete. Version 5.21.0 patches the issue.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Churchcrm | Churchcrm | < 5.21.0 |
Related Weaknesses (CWE)
References
- https://github.com/ChurchCRM/CRM/security/advisories/GHSA-m8jq-j3p9-2xf3ExploitVendor Advisory
FAQ
What is CVE-2025-62521?
CVE-2025-62521 is a vulnerability with a CVSS score of 10.0 (CRITICAL). ChurchCRM is an open-source church management system. Prior to version 5.21.0, a pre-authentication remote code execution vulnerability in ChurchCRM's setup wizard allows unauthenticated attackers to ...
How severe is CVE-2025-62521?
CVE-2025-62521 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-62521?
Check the references section above for vendor advisories and patch information. Affected products include: Churchcrm Churchcrm.