{"id":"EUVD-2026-62971","enisaUuid":"f729ef93-3adf-3d7c-979e-316238ab5a17","description":"Tina is a headless content management system. Prior to 2.5.2, the TinaCMS CLI package\u0027s 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\u0027s 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.","datePublished":"Aug 19, 2026, 9:41:18 PM","dateUpdated":"Aug 25, 2026, 2:20:27 PM","baseScore":6.5,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","references":"https://github.com/tinacms/tinacms/security/advisories/GHSA-rgr9-r7mj-mf6x\nhttps://github.com/tinacms/tinacms/pull/7111\nhttps://github.com/tinacms/tinacms/commit/211997cdb53cbd43638bdee999faa65375cfc260\nhttps://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@2.5.2\n","aliases":"CVE-2026-63123\nGHSA-rgr9-r7mj-mf6x\n","assigner":"GitHub_M","epss":0.26,"enisaIdProduct":[{"id":"883a8f2f-76c9-3ff2-a7b0-f9065033d691","product":{"name":"tinacms","vendor":{"name":"tinacms"}},"product_version":"\u003c 2.5.2"}],"enisaIdVendor":[{"id":"d4fa1a32-6415-355e-93cd-0e62f5ab4243","vendor":{"name":"tinacms"}}],"enisaIdVulnerability":[{"id":"4ad26a0c-a3d9-3e27-bffe-777b924e03e3","vulnerability":{"id":"CVE-2026-63123","description":"Tina is a headless content management system. Prior to 2.5.2, the TinaCMS CLI package\u0027s 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\u0027s 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.","datePublished":"Aug 19, 2026, 9:41:18 PM","dateUpdated":"Aug 25, 2026, 2:20:27 PM","status":"PUBLISHED","baseScore":6.5,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","references":"https://github.com/tinacms/tinacms/security/advisories/GHSA-rgr9-r7mj-mf6x\nhttps://github.com/tinacms/tinacms/pull/7111\nhttps://github.com/tinacms/tinacms/commit/211997cdb53cbd43638bdee999faa65375cfc260\nhttps://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@2.5.2\n","enisa_id":"EUVD-2026-62971\n","assigner":"GitHub_M","epss":0.26,"dataProcessed":"Oct 28, 2026, 7:15:21 AM","vulnerabilityProduct":[{"id":"5e12c0f4-c8f2-3e90-91d0-ef74059f69c4","product":{"name":"tinacms","vendor":{"name":"tinacms"}},"product_version":"\u003c 2.5.2"}],"vulnerabilityVendor":[{"id":"03f2d6d1-9b57-3cfe-9f41-9241a48831ca","vendor":{"name":"tinacms"}}]}},{"id":"eff2602a-b1d5-3969-b91d-a73cdc1d6c47","vulnerability":{"id":"GHSA-rgr9-r7mj-mf6x","description":"Tina: Cross-origin `POST /media/upload/*` requests can write arbitrary files into the Tina dev server media root","datePublished":"Aug 19, 2026, 9:56:36 PM","dateUpdated":"Aug 21, 2026, 6:31:29 PM","baseScore":0.0,"references":"https://github.com/tinacms/tinacms/security/advisories/GHSA-rgr9-r7mj-mf6x\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63123\nhttps://github.com/tinacms/tinacms/pull/7111\nhttps://github.com/tinacms/tinacms/commit/211997cdb53cbd43638bdee999faa65375cfc260\nhttps://github.com/tinacms/tinacms\nhttps://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@2.5.2\n","enisa_id":"EUVD-2026-62971\n","aliases":"GHSA-rgr9-r7mj-mf6x\nCVE-2026-63123\n","epss":0.0,"dataProcessed":"Oct 25, 2026, 1:59:46 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[]}