SEPTEMBER 13, 2026
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Case File

CVE-2026-58409

CRITICAL · CVSS 9.1 EPSS 0.46% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-13 · Last synced 2026-08-12

CyberRota Analysis

AI-Generated

ChurchCRM versions prior to 7.4.0 are vulnerable to Remote Code Execution (RCE) due to improper handling of plugin ZIP archives, allowing authenticated administrators to install malicious PHP webshells directly into the web root. The application’s configuration permits PHP files in allowed extensions while failing to adequately block them in the denylist, enabling immediate execution via HTTP. Organizations using affected versions should prioritize patching to version 7.4.0 to mitigate this critical vulnerability.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-58409
Severity
CRITICAL
CVSS
9.1
EPSS
0.46%

Original NVD Description

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.