CVE Watch20 jul 2026

CVE-2026-63429

HeyForm is an open-source form builder. Prior to version 3.0.0-rc.9, `POST /api/upload` has no authentication guard, no global guard, no for

CVSS

8.6

Alto

EPSS

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KEV

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Exploit Today

0-100

Publicado: 20 jul 2026 · Última mod.: 20 jul 2026 · CWE-306 · CWE-434

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

HeyForm is an open-source form builder. Prior to version 3.0.0-rc.9, `POST /api/upload` has no authentication guard, no global guard, no form-context validation, no `openToken` requirement, and no session cookie check. Any anonymous internet user can upload files (PDF, DOC/DOCX, XLS/XLSX, CSV, TXT, MP4, images, etc., up to 10 MB) and receive a permanent public URL on the HeyForm domain. The endpoint is used by both authenticated form creators and unauthenticated form submitters; because no form-context binding exists, every request to it is anonymously accepted. Version 3.0.0-rc.9 contains a patch for the issue.

Referencias oficiales

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