Description (CNA)
Tina is a headless content management system. In versions prior to @tinacms/app 2.5.6 and tinacms 3.9.3, cross-origin postMessage handlers and a rich-text URL-sanitization bypass enable stored XSS and session takeover. The library registers window message listeners — the useTina overlay handler, the OAuth authentication popup handler, and the admin↔preview iframe GraphQL reducer — that act on event.data without verifying event.origin or event.source and post messages using non-specific target origins, while insufficient URL sanitization in rich-text content allows malicious URLs to persist and execute. A page the victim visits (or a window in an opener/iframe relationship with a Tina admin) can forge messages to drive the editor, inject preview content, or observe/forge the OAuth popup channel to take over an authenticated editing session. This issue has been fixed in versions @tinacms/app 2.5.6 and tinacms 3.9.3.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| tinacms / tinacms | affected < 3.9.3 |
| tinacms / @tinacms/app | affected < 2.5.6 |
CWE
CWE-79, CWE-346, CWE-601, CWE-940
References
- https://github.com/tinacms/tinacms/security/advisories/GHSA-g5qx-h5f3-mp2f
- https://github.com/tinacms/tinacms/pull/7056
ADP enrichment
No English description supplied.
No references supplied.