React Router is a router for React. From 7.12.0 until 7.15.1, certain CSRF checks in React Router v7 Framework Mode were insufficient and run on POST requests, but were bypassed on PUT/PATCH/DELETE requests. This is a low severity vulnerability because modern browser protections (CORS preflight, SameSite cookies) already block the cross-origin attack vectors that this missing CSRF check would otherwise gate. This vulnerability is fixed in 7.15.1.
Exploitability
AV:NAC:HPR:NUI:RScope
S:UImpact
C:NI:LA:N3.1/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:NAuthentication