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.
Metrics
Affected Vendors & Products
References
History
Tue, 25 Aug 2026 15:30:00 +0000
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ssvc
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Fri, 21 Aug 2026 13:30:00 +0000
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Tina
Tina tinacms |
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| Vendors & Products |
Tina
Tina tinacms |
Wed, 19 Aug 2026 22:00:00 +0000
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| Description | 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. | |
| Title | Tina: Cross-origin `POST /media/upload/*` requests can write arbitrary files into the Tina dev server media root | |
| Weaknesses | CWE-352 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-08-19T21:41:18.687Z
Updated: 2026-08-25T14:20:27.175Z
Reserved: 2026-07-15T16:54:55.816Z
Link: CVE-2026-63123
Updated: 2026-08-25T14:19:38.962Z
Status : Deferred
Published: 2026-08-19T22:16:58.710
Modified: 2026-09-10T21:18:16.573
Link: CVE-2026-63123
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