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Advisories

Payload CMS storage-vercel-blob Adapter Improper Access Control on Upload Route

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severity
medium
date
Affecting

  • payload >= 3.25.0, < 3.90.0

  • payload >= 4.0.0-canary.0, < 4.0.0-canary.34

CWE
  • CWE-862 Missing Authorization
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
Saidakbarxon Maxsudxonov
Description
The @payloadcms/storage-vercel-blob storage adapter for Payload contains an improper access control vulnerability that allows authenticated users to bypass collection-level permissions by accessing the client-upload route directly. Attackers can upload files through the client-upload endpoint without possessing the required collection access permissions, circumventing the intended access control enforcement.

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