{"uuid": "be1003cb-3540-4262-9d1b-a16189901255", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-29927", "type": "published-proof-of-concept", "source": "https://t.me/suboxone_chatroom/7709", "content": "\ud83c\udf00 This is wild!\n\nYou\u2019ve probably seen the buzz around the Next.js middleware auth bypass (CVE-2025-29927) \u2014 but there\u2019s another less-known yet similar vulnerability: CVE-2024-51479.\n\nThis flaw allows attackers to bypass authentication by abusing the __nextLocale query parameter in the URL, tricking the middleware into granting access to protected routes.\n\nProof of Concept (PoC):\n\ncurl https://target.com/?__nextLocale=/admin\n\nThis vulnerability was fixed in Next.js v14.2.15, and Vercel-hosted apps have already been patched automatically.\n\nI found a very cool article explaining everything in detail:\n\nhttps://gmo-cybersecurity.com/blog/another-nextjs-middleware-bypass-en", "creation_timestamp": "2025-04-06T23:09:44.000000Z"}