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CVE-2026-63123

CVE-2026-63123 · Tina: Cross-origin `POST /media/upload/*` requests can write arbitrary files into the Tina dev server media root

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.5 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • tinacms

    Versions
    • < 2.5.2: Affected

    No fix published

  • @tinacms/cli npm

    Affected ranges
    • SEMVER: < 2.5.2

    Update to 2.5.2

Original sources

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