CVE-2026-58409: critical vulnerability in ChurchCRM CRM
ChurchCRM: Authenticated Remote Code Execution (RCE) via Malicious Plugin Upload
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.6%
ChurchCRM is an open-source church management system. Prior to version 7.4.0, an authenticated administrator can achieve Remote Code Execution (RCE) on the server by installing a malicious plugin ZIP archive containing a PHP webshell. The application explicitly includes 'php' in its ALLOWED_EXTENSIONS list, while the dangerous extensions denylist (DENIED_EXTENSIONS) fails to block standard .php files. Because `php` is explicitly included in the allowed extension list for plugin archives, and extracted files are placed directly under the web root, any PHP file inside the ZIP becomes immediately executable via HTTP — without even needing to "enable" the plugin through the application UI. The /plugins/install-url API route (management.php) allows an administrator to source the malicious ZIP from any attacker-controlled HTTPS URL, validating it only against an attacker-supplied SHA-256 hash. This issue has been fixed in version 7.4.0.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Affected products
ChurchCRM · CRMRelated CVEs — ChurchCRM CRM
In the same product, most dangerous first.
CVE-2025-62521CRITICALChurchCRM has unauthenticated RCE in its Install WizardEPSS 4.5%CVE-2024-39304HIGHChurchCRM SQL Injection VulnerabilityEPSS 3.0%CVE-2025-68109CRITICALChurchCRM vulnerable to RCE with database restore functionalityEPSS 1.5%CVE-2026-39339CRITICALChurchCRM has an API Authentication BypassEPSS 1.4%CVE-2026-40484CRITICALChurchCRM: Authenticated Remote Code Execution via Unrestricted PHP File Write in Database Restore FunctionEPSS 0.9%CVE-2026-35573CRITICALChurchCRM has a Path traversal leads to RCEEPSS 0.8%