CVE-2026-63765

8.2 HIGH
Published: July 23, 2026 Modified: July 23, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.2 / 10.0
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)