NuytsTech Security

CVE-2026-40565

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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.

More information : https://github.com/freescout-help-desk/freescout/commit/265379b3ae343f06846adc0aa8510643d1eac2df

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