CVE-2026-58409
Authenticated admin can install malicious plugin ZIP leading to PHP webshell RCE.
Is CVE-2026-58409 being exploited?
Not confirmed. CVE-2026-58409 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.76% probability of exploitation in the next 30 days.
How severe is CVE-2026-58409?
CVE-2026-58409 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-58409?
Yes. A fix has been recorded for CVE-2026-58409. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-58409 affect?
CVE-2026-58409 affects ChurchCRM <7.4.0, Self-hosted ChurchCRM instances, /plugins/install-url (management.php). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-58409?
Upgrade to 7.4.0; restrict admin plugin installs; audit webroot for shells.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated administrator can install a plugin ZIP that drops a PHP webshell into webroot, enabling remote code execution and full server compromise via HTTP.
Immediate action required
- affected< 7.4.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.