# CVE-2026-40567

> Vulnerability · severity: **MEDIUM** (CVSS 5.8).

## Description

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.

## Key facts

- **CVE ID:** CVE-2026-40567
- **Published:** 2026-04-21
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5.8
- **CWE codes:** CWE-116

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40567

## Citation

> AI Analytics. CVE-2026-40567. Retrieved 2026-07-20 from https://api.ai-analytics.org/cve/CVE-2026-40567. Derived from NIST NVD. Licensed CC0.

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