GHSA-g5qx-h5f3-mp2f
NoneCVSS
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EPSS
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Published
Jun 19, 2026
CISA due date
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The record
TinaCMS: Cross-origin postMessage handlers and rich-text URL-sanitization bypass enable stored XSS and session takeover
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | @tinacms/app | 0 | 2.5.6 |
| npm | tinacms | 0 | 3.9.3 |
Related vulnerabilities
- CVE-2026-55661 Tina is a headless content management system. Also affects tinacms
- GHSA-2vcc-5v34-9jc8 TinaCMS rich-text (slatejson) rendering does not sanitize link/image URLs, allowing… Also affects tinacms
- GHSA-5hxf-c7j4-279c Tina: Path Traversal in Media Upload Handle Also affects tinacms
- CVE-2026-28791 Tina is a headless content management system. Also affects tinacms
- GHSA-529f-9qwm-9628 tinacms is vulnerable to arbitrary code execution Also affects tinacms
- CVE-2025-68278 Tina is a headless content management system. Also affects tinacms
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