CVE-2021-3742: Chatwoot

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.

Affected products

• Chatwoot Chatwoot: before 2.5.0 (fixed in 2.5.0)

Published 2024-11-15. Last modified 2026-06-17.