CVE-2025-62521

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 v3 10.0 CRITICAL

10.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/ChurchCRM/CRM/security/advisories/GHSA-m8jq-j3p9-2xf3	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:churchcrm:churchcrm:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-12-17 19:16

Updated : 2025-12-18 19:10

NVD link : CVE-2025-62521

Mitre link : CVE-2025-62521

CVE.ORG link : CVE-2025-62521

JSON object : View

Products Affected

churchcrm

churchcrm

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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