{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63123", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-15T16:54:55.816Z", "datePublished": "2026-08-19T21:41:18.687Z", "dateUpdated": "2026-08-19T21:41:18.687Z"}, "containers": {"cna": {"title": "Tina: Cross-origin `POST /media/upload/*` requests can write arbitrary files into the Tina dev server media root", "problemTypes": [{"descriptions": [{"cweId": "CWE-352", "lang": "en", "description": "CWE-352: Cross-Site Request Forgery (CSRF)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/tinacms/tinacms/security/advisories/GHSA-rgr9-r7mj-mf6x", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-rgr9-r7mj-mf6x"}, {"name": "https://github.com/tinacms/tinacms/pull/7111", "tags": ["x_refsource_MISC"], "url": "https://github.com/tinacms/tinacms/pull/7111"}, {"name": "https://github.com/tinacms/tinacms/commit/211997cdb53cbd43638bdee999faa65375cfc260", "tags": ["x_refsource_MISC"], "url": "https://github.com/tinacms/tinacms/commit/211997cdb53cbd43638bdee999faa65375cfc260"}, {"name": "https://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@2.5.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@2.5.2"}], "affected": [{"vendor": "tinacms", "product": "tinacms", "versions": [{"version": "< 2.5.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-19T21:41:18.687Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-rgr9-r7mj-mf6x", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "tinacms", "vendor": "tinacms", "versions": [{"status": "affected", "version": "< 2.5.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-63123", "lastModified": "2026-08-19T22:16:58.710", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-19T22:16:58.710", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/tinacms/tinacms/commit/211997cdb53cbd43638bdee999faa65375cfc260"}, {"source": "security-advisories@github.com", "url": "https://github.com/tinacms/tinacms/pull/7111"}, {"source": "security-advisories@github.com", "url": "https://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@2.5.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-rgr9-r7mj-mf6x"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-352"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}