Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freescout | Freescout | < 1.8.213 |
Related Weaknesses (CWE)
References
- https://github.com/freescout-help-desk/freescout/commit/265379b3ae343f06846adc0aPatch
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213Release Notes
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-49pm-xVendor Advisory
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-49pm-xVendor Advisory
FAQ
What is CVE-2026-40565?
CVE-2026-40565 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 ...
How severe is CVE-2026-40565?
CVE-2026-40565 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40565?
Check the references section above for vendor advisories and patch information. Affected products include: Freescout Freescout.