🛡️ CVE-2026-30868
🟡 CVSS 6.3 — Medium ⚠️ Exploit Public CWE-352 NVD
6.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity MEDIUM
CVSS Score 6.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
CWE CWE-352
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-11
Updated 2026-06-02
Modified 2026-03-17
Fix URL N/A

Affected Packages

Software From version Fixed in
opnsense — 26.1.4

References

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