Vulnerability Description
GetSimple CMS is a content management system. All versions of GetSimple CMS do not implement CSRF protection on the administrative file upload endpoint. As a result, an attacker can craft a malicious web page that silently triggers a file upload request from an authenticated victim’s browser. The request is accepted without requiring a CSRF token or origin validation. This allows an attacker to upload arbitrary files to the application without the victim’s knowledge or consent. In order to exploit this vulnerability, the victim must be authenticated to GetSimple CMS (e.g., admin user), and visit an attacker-controlled webpage. This issue does not have a fix at the time of publication.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Getsimple-Ce | Getsimple Cms | <= 3.3.22 |
Related Weaknesses (CWE)
References
- https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-26rvExploitMitigationVendor Advisory
FAQ
What is CVE-2026-27146?
CVE-2026-27146 is a vulnerability with a CVSS score of 4.5 (MEDIUM). GetSimple CMS is a content management system. All versions of GetSimple CMS do not implement CSRF protection on the administrative file upload endpoint. As a result, an attacker can craft a malicious ...
How severe is CVE-2026-27146?
CVE-2026-27146 has been rated MEDIUM with a CVSS base score of 4.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-27146?
Check the references section above for vendor advisories and patch information. Affected products include: Getsimple-Ce Getsimple Cms.