CVE detail
CVE-2026-63765
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 17.9 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 5
- within the 30d window
- Peak daily
- 5
- highest bucket
Evidence
Source links by recency
5 source links · newest first
- https://www.vulncheck.com/advisories/chatwoot-unauthenticated-activestorage-direct-upload-arbitrary-blob-creationwww.vulncheck.com
No excerpt available.
Exploitwww.vulncheck.comJul 23, 2026, 7:17 PM No excerpt available.
Exploitgithub.comJul 23, 2026, 7:17 PMNo excerpt available.
Exploitgithub.comJul 23, 2026, 7:17 PMNo excerpt available.
Exploitgithub.comJul 23, 2026, 7:17 PMNo excerpt available.
Exploitgithub.comJul 23, 2026, 7:17 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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