FreeScout's Missing Authorization in load_customer_info Allows Any Authenticated User to Access Full Customer PII

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

• freescout-help-desk freescout

  • < 1.8.213affected

Other highest-scoring records for the same primary product.

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• CVE-2026-41902FreeScout's user invitation hash never expires: permanent unauthenticated account takeover if invite link leaks
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• CVE-2026-41193FreeScout has Zip Slip path traversal in module installation that allows arbitrary file write leading to RCE
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• CVE-2026-40569FreeScout's Mass Assignment in Mailbox Connection Settings Enables Silent Email Exfiltration
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• CVE-2026-53593FreeScout Vulnerable to Authenticated Remote Code Execution via incomplete upload extension denylist (.pht) — bypass of CVE-2025-48471
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• CVE-2026-53591FreeScout Vulnerable to Unauthenticated Conversation Thread Injection via HMAC Length Bypass in FetchEmails
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FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The endpoint fetches the record by the ID sent in the request, but never checks whether the record belongs to the requesting user.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1const invoice = await Invoice.findById(req.params.id);2res.json(invoice);

1const invoice = await Invoice.findOne({2  id: req.params.id,3  ownerId: req.user.id,4});5if (!invoice) return res.sendStatus(404);6res.json(invoice);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.