CVE WatchNov 6, 2026

CVE-2026-62854

FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.225, a user who can edit a mailbox signature can combine a scriptable

CVSS

7.6

High

EPSS

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KEV

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Exploit Today

0-100

Published: Nov 6, 2026 · Last modified: Nov 6, 2026 · CWE-79

EPSS · 30d

Not enough EPSS history yet.

Technical description

FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.225, a user who can edit a mailbox signature can combine a scriptable file uploaded through /uploads/upload with nested tag fragments that bypass Helper::stripDangerousTags(). The resulting external script is served from the same origin, so the script-src 'self' policy permits it when another user opens the affected mailbox reply editor or new-ticket page. The script executes with the victim's FreeScout privileges and can read visible data and perform same-origin actions. This issue is fixed in version 1.8.225.

Official references

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