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CVE-2026-63123GHSA-RGR9-R7MJ-MF6X

Tina: Cross-origin `POST /media/upload/*` requests can write arbitrary files into the Tina dev server media root

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.5.2
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

Tina is a headless content management system. Prior to 2.5.2, the TinaCMS CLI package's Vite dev server packages/@tinacms/cli/src/next/vite/cors.ts origin callback returns false for a disallowed origin but does not reject the request, and packages/@tinacms/cli/src/next/vite/plugins.ts still routes POST /media/upload/* to mediaRouter.handlePost. The upload code in packages/@tinacms/cli/src/next/commands/dev-command/server/media.ts writes attacker-controlled multipart contents inside the configured media root. A remote attacker can cause a developer's browser to submit this state-changing request by inducing the developer to visit an attacker-controlled page while tinacms dev is running. This issue is fixed in version 2.5.2.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • tinacms tinacms

    fixed in 2.5.2

  • @tinacms/clinpm

    fixed in 2.5.2

References 4

GitHub · tinacms/tinacms