What is CVE-2026-58409?

CVE-2026-58409 is a critical-severity vulnerability in Churchcrm Crm, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2026-07-13.

How severe is CVE-2026-58409?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Arbitrary file upload in Churchcrm Crm

CVE-2026-58409

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…

Vulnerability class: Unrestricted File Upload

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Churchcrm Crm — versions < 7.4.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-58409?: CVE-2026-58409 is a critical-severity vulnerability in Churchcrm Crm, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2026-07-13.
How severe is CVE-2026-58409?: Critical severity. CVSS v3 base score is 9.1 out of 10.