Vulnerability Details CVE-2026-28792
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.4%
CVSS Severity
CVSS v3 Score 9.6
References
Products affected by CVE-2026-28792
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cpe:2.3:a:ssw:tinacms/cli:*