cvedb.io
CVE-2026-28495
CRITICAL · CVSS 9.6
EPSS exploitation probability: 0%
Published 2026-03-10T20:16:37.663 · Last modified 2026-06-17T10:28:44.700

Summary

GetSimple CMS is a content management system. The massiveAdmin plugin (v6.0.3) bundled with GetSimpleCMS-CE v3.3.22 allows an authenticated administrator to overwrite the gsconfig.php configuration file with arbitrary PHP code via the gsconfig editor module. The form lacks CSRF protection, enabling a remote unauthenticated attacker to exploit this via Cross-Site Request Forgery against a logged-in admin, achieving Remote Code Execution (RCE) on the web server.

Affected products

getsimple-ce — getsimple_cms

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.