OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.4, multiple OPNsense MVC API endpoints perform state‑changing operations but are accessible via HTTP GET requests without CSRF protection. The framework CSRF validation in ApiControllerBase only applies to POST/PUT/DELETE methods, allowing authenticated GET requests to bypass CSRF verification. As a result, a malicious website can trigger privileged backend actions when visited by an authenticated user, causing unintended service reloads and configuration changes through configd. This results in an authenticated Cross‑Site Request Forgery vulnerability allowing unauthorized system state changes. This vulnerability is fixed in 26.1.4.
References
Configurations
No configuration.
History
11 Mar 2026, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-03-11 17:16
Updated : 2026-03-12 21:08
NVD link : CVE-2026-30868
Mitre link : CVE-2026-30868
CVE.ORG link : CVE-2026-30868
JSON object : View
Products Affected
No product.
CWE
CWE-352
Cross-Site Request Forgery (CSRF)
