CVE-2026-28495
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 Cms, Massiveadmin
- Getsimple-ce Getsimple Cms
- ≤ 3.3.22
- Fix
- Available
- CVSS 3.1
- 9.6 CRITICAL
- EPSS
- 0.3% (22th percentile)
- Weakness
- CWE-352
- NVD status
- Analyzed
- Published
- 2026-03-10
CVE-2026-28495 at NVD
No indexed exploits for CVE-2026-28495 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-28495 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.