{"id":"CVE-2026-28792","state":"PUBLISHED","title":"Cross-Origin File Exfiltration via CORS Misconfiguration + Path Traversal in TinaCMS","description":"Tina is a headless content management system. Prior to 2.1.8 , the TinaCMS CLI dev server combines a permissive CORS configuration (Access-Control-Allow-Origin: *) with the path traversal vulnerability (previously reported) to enable a browser-based drive-by attack. A remote attacker can enumerate the filesystem, write arbitrary files, and delete arbitrary files on developer's machines by simply tricking them into visiting a malicious website while tinacms dev is running. This vulnerability is fixed in 2.1.8.","publishedAt":"2026-03-12T16:48:16.461Z","updatedAt":"2026-03-13T16:29:06.236Z","severity":{"score":9.7,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["@tinacms cli"],"affected":[{"vendor":"@tinacms","product":"cli","versions":[{"version":"< 2.1.8","status":"affected"}]}],"references":["https://github.com/tinacms/tinacms/security/advisories/GHSA-8pw3-9m7f-q734"],"weaknesses":["CWE-22","CWE-942"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/28xxx/CVE-2026-28792.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-28792","state":"PUBLISHED","datePublished":"2026-03-12T16:48:16.461Z","dateUpdated":"2026-03-13T16:29:06.236Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-03T14:25:19.245Z"},"containers":{"cna":{"title":"Cross-Origin File Exfiltration via CORS Misconfiguration + Path Traversal in TinaCMS","descriptions":[{"lang":"en","value":"Tina is a headless content management system. Prior to 2.1.8 , the TinaCMS CLI dev server combines a permissive CORS configuration (Access-Control-Allow-Origin: *) with the path traversal vulnerability (previously reported) to enable a browser-based drive-by attack. A remote attacker can enumerate the filesystem, write arbitrary files, and delete arbitrary files on developer's machines by simply tricking them into visiting a malicious website while tinacms dev is running. This vulnerability is fixed in 2.1.8."}],"affected":[{"vendor":"@tinacms","product":"cli","versions":[{"version":"< 2.1.8","status":"affected"}]}],"references":[{"url":"https://github.com/tinacms/tinacms/security/advisories/GHSA-8pw3-9m7f-q734","name":"https://github.com/tinacms/tinacms/security/advisories/GHSA-8pw3-9m7f-q734","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.7,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-942","lang":"en","description":"CWE-942: Permissive Cross-domain Policy with Untrusted Domains","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-12T16:48:16.461Z"},"source":{"advisory":"GHSA-8pw3-9m7f-q734","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/tinacms/tinacms/security/advisories/GHSA-8pw3-9m7f-q734","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-13T16:29:02.569938Z","id":"CVE-2026-28792","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-13T16:29:06.236Z"}}]}}}