Exploit for #VU105939 Improper authorization in Next.js

Vulnerability identifier: #VU105939

Vulnerability risk: High

CVSSv4.0: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2025-29927

CWE-ID: CWE-285

Exploitation vector: Network

Exploits in database: 5

• March 25, 2025
  • CVE-2025-29927 (CVE-2025-29927 Exploit Checker) [Github]
  • CVE-2025-29927-PoC-Exploit (Proof-of-Concept for Authorization Bypass in Next.js Middleware) [Github]
  • nextjs-middleware-bypass-demo [Github]
  • CVE-2025-29927 [Github]
  • CVE-2025-29927 [Github]

Vulnerable software:
Next.js
Server applications / Frameworks for developing and running applications

Vendor: Zeit