Description (CNA)
Postiz is an AI social media scheduling tool. From version 2.16.6 to before version 2.21.7, all SSRF protections added in v2.21.4–v2.21.6 share a fundamental TOCTOU (Time-of-Check-Time-of-Use) vulnerability: isSafePublicHttpsUrl() resolves DNS to validate the target IP, but subsequent fetch() calls resolve DNS independently. An attacker controlling a DNS server can exploit this gap via DNS rebinding to redirect requests to internal network addresses. This issue has been patched in version 2.21.7.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| gitroomhq / postiz-app | affected >= 2.16.6, < 2.21.7 |
CWE
CWE-918
References
- https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-f7jj-p389-4w45
- https://github.com/gitroomhq/postiz-app/commit/071143dcb01cdeb9d5d7019892f4c6ff7b19dbeb
- https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.7
ADP enrichment
No English description supplied.
No references supplied.