Is there a public exploit for CVE-2026-62854?

No public exploit for CVE-2026-62854 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-62854?

CVE-2026-62854 scores CVSS 7.6 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.22%.

What does CVE-2026-62854 affect?

CVE-2026-62854 affects freescout-help-desk freescout.

7.6 High

FreeScout is a self-hosted help desk and shared mailbox.

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 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.

Assessment

CVSS: 7.6 (v3.1)
Severity: High
EPSS: 0.22% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 6 November 2026
Last updated: 11 November 2026
Affected: freescout-help-desk · freescout
Assigner: GitHub_M

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

At the source

EUVD (ENISA)

References

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