CVE-2026-63765
8.8
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Summary
Chatwoot before 4.16.0 contains an authentication bypass vulnerability in the direct uploads controller that allows unauthenticated attackers to create arbitrary ActiveStorage blobs in any tenant account. Attackers can exploit missing authentication checks to resolve any account and conversation, then obtain signed PUT URLs to write arbitrary data to the application's storage backend.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| chatwoot | chatwoot | 0 < 4.16.0 | affected |
Weaknesses
- CWE-306: Missing Authentication for Critical Function
References
- https://github.com/chatwoot/chatwoot/issues/15072
- https://github.com/chatwoot/chatwoot/releases/tag/v4.16.0
- https://github.com/chatwoot/chatwoot/pull/15039
- https://github.com/chatwoot/chatwoot/commit/8dd0d08322edafaec24624b72ed2f6045921cb7b
- https://www.vulncheck.com/advisories/chatwoot-unauthenticated-activestorage-direct-upload-arbitrary-blob-creation
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.