CVE-2026-40565
MEDIUMFreeScout has Stored XSS / CSS Injection via linkify() — Unescaped URL in Anchor href
Title source: cnaDescription
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.
Scores
CVSS v3
6.1
EPSS
0.0003
EPSS Percentile
8.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (2)
freescout/freescout
< 1.8.213
freescout-help-desk/freescout
< 1.8.213
Published
Apr 21, 2026
Tracked Since
Apr 21, 2026