Vulnerability Details CVE-2026-28791
Tina is a headless content management system. Prior to 2.1.7, a path traversal vulnerability exists in the TinaCMS development server's media upload handler. The code at media.ts joins user-controlled path segments using path.join() without validating that the resulting path stays within the intended media directory. This allows writing files to arbitrary locations on the filesystem. This vulnerability is fixed in 2.1.7.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 18.4%
CVSS Severity
CVSS v3 Score 7.4
References
Products affected by CVE-2026-28791
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cpe:2.3:a:ssw:tinacms/cli:*