| Título | ChatGPTNextWeb NextChat 2.16.1 Permissive CORS Wildcard Policy |
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| Descripción | NextChat configures its Next.js application to attach maximally permissive CORS response headers to every API endpoint under the /api/* path prefix. The configuration in next.config.mjs (lines 38-63) sets.This configuration allows any website on the internet to make cross-origin requests to all NextChat API endpoints. Because Access-Control-Allow-Headers: * permits custom headers, attacker-controlled JavaScript can set the x-base-url header, which the proxy endpoint (/api/[provider]/[...path]/route.ts) uses to determine the server-side fetch destination. This directly enables cross-origin SSRF attacks. |
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| Fuente | ⚠️ https://github.com/ChatGPTNextWeb/NextChat/issues/6756 |
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| Usuario | Yu_Bao (UID 89348) |
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| Sumisión | 2026-04-17 07:19 (hace 6 meses) |
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| Moderación | 2026-05-01 18:34 (14 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 360755 [ChatGPTNextWeb NextChat hasta 2.16.1 API Endpoint Next.js escalada de privilegios] |
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| Puntos | 20 |
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