CVE-2026-40565: Freescout

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, FreeScout's linkify() function in app/Misc/Helper.php converts plain-text URLs in email bodies into HTML anchor tags without escaping double-quote characters (") in the URL. HTMLPurifier (called first via getCleanBody()) preserves literal " characters in text nodes. linkify() then wraps URLs including those " chars inside an unescaped href="..." attribute, breaking out of the href and injecting arbitrary HTML attributes. Version 1.8.213 fixes the issue.

Affected products

• Freescout Freescout: before 1.8.213 (fixed in 1.8.213)

Published 2026-04-21. Last modified 2026-06-17.