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CVE-2026-85743

8.2 highEPSS 0.3%

High (8.2) in freescout-help-desk freescout. EPSS 0.3% estimated probability of exploitation activity in the next 30 days.

On this page
FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.230, multiple outbound paths in Helper::downloadRemoteFile(), Helper::checkPort(), Helper::sanitizeRemoteUrl(), MailboxesController.php, and ModulesController.php do not consistently enforce a sink-level restricted-host policy. An authenticated administrator, or another authenticated user permitted to change mailbox connection settings or trigger module update or installation paths, can supply attacker-controlled URLs or hosts. The independent download and port-test sinks can reach encoded or otherwise uncovered loopback and internal addresses. The redirect-validation bypass additionally requires a configured whitelist that permits the original and final hosts while a restricted internal host appears only as an intermediate redirect hop. No unauthenticated SSRF path is established. The server can consequently contact loopback and internal services, provide a blind internal port oracle, and retrieve internal HTTP responses into application-controlled download sinks. This issue is fixed in version 1.8.230.

Severity

CVSS 3.1

8.2 high
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:L
EPSS
0.3% estimated probability of exploitation activity in the next 30 days; 18th percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-918 Server-Side Request Forgery (SSRF)
OWASP Top 10
A01:2025 Broken Access Control
Published
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
freescout-help-desk freescout< 1.8.230

Attack patterns (CAPEC)

  • CAPEC-664 Server Side Request Forgery Likelihood: High · Severity: High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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