CyberRota Analysis
AI-GeneratedTina, a headless content management system, is vulnerable due to improper validation of bearer tokens, allowing attackers with any TinaCloud account to impersonate users and perform unauthorized operations on a victim's content, including media management and GraphQL actions. This high-severity vulnerability affects any instance using the specified versions of @tinacms/auth and next-tinacms-azure. Organizations utilizing Tina should prioritize upgrading to the patched versions to mitigate the risk of unauthorized access and data manipulation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Tina is a headless content management system. Prior to @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1, isAuthorized accepts a request-controlled clientID and asks isUserAuthorized to validate the bearer token against that selected TinaCloud app instead of the self-hosted site's configured app. An attacker with any TinaCloud account can submit the attacker's own app ID and valid token to a victim endpoint, causing TinaCloudBackendAuthProvider or an affected media authorized callback to accept the attacker's verified status across the tenant boundary. The vulnerable logic is present in packages/@tinacms/auth/src/index.ts and packages/next-tinacms-azure/src/auth.ts. Successful exploitation permits media listing, reading, upload, or deletion and, when TinaCloudBackendAuthProvider is used, GraphQL read, create, update, and delete operations on the victim's content without a victim account or victim interaction. This vulnerability is fixed in @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1.