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CVE-2026-40590

FreeScout's Customer AJAX Create Modifies Hidden Existing Customer PUBLISHED

Description (CNA)

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the Change Customer modal exposes a “Create a new customer” flow via POST /customers/ajax with action=create. Under limited visibility, the endpoint drops unique-email validation. If the supplied email already belongs to a hidden customer, Customer::create() reuses that hidden customer object and fills empty profile fields from attacker-controlled input. Version 1.8.214 fixes the vulnerability.

Affected (CNA)

Vendor / productVersions
freescout-help-desk / freescoutaffected < 1.8.214

CWE

CWE-639

References

ADP enrichment

CISA-ADP

No English description supplied.