CVE-2026-28792 Cross-Origin File Exfiltration via CORS Misconfiguration + Path Traversal in TinaCMS
CriticalCVSS 9.7
EPSS 0.64%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tinacms @tinacms/cli | = < 2.1.8 | No fix listed |
| tinacms @tinacms/cli(npm) | < 2.1.8 | 2.1.8 |
| ssw tinacmscli | < 2.1.8 | 2.1.8 |
References
- https://github.com/tinacms/tinacms/security/advisories/GHSA-8pw3-9m7f-q734 exploit vendor-advisory
- nvd.nist.gov third-party-advisory
- github.com patch
- github.com patch
- github.com
- github.com