CVE-2026-40567
Medium · 5.8CVSS
5.8
EPSS
0.4%
Published
Apr 21, 2026
CISA due date
—
The record
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, an unauthenticated attacker can inject arbitrary HTML into outgoing emails generated by FreeScout by sending an email with a crafted From display name. The name is stored in the database without sanitization and rendered unescaped into outgoing reply emails via the `{%customer.fullName%}` signature variable. This allows embedding phishing links, tracking pixels, and spoofed content inside legitimate support emails sent from the organization's address. Version 1.8.213 fixes the issue.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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