CVE-2026-103984: FreeScout authorization bypass in load_customer_info

CVE-2026-103984 · Severity: medium · CVSS 6.5 · Published 2026-11-06

FreeScout is a self-hosted help desk and shared mailbox system. A non-admin agent can bypass authorization checks to retrieve unrelated customers' profiles, exposing names, email addresses, phone numbers, company information, postal addresses, social profiles, and internal notes. This information disclosure occurs when the limit_user_customer_visibility feature is enabled.

Technologies: FreeScout. Vendors: FreeScout.

Quick answers

Is CVE-2026-103984 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-103984 being exploited in the wild.
How severe is CVE-2026-103984?
Medium severity, with a CVSS score of 6.5, published 6 November 2026.
Which products and versions are affected?
FreeScout before 1.8.231.
Is there a fix for CVE-2026-103984?
Yes: fixed in 1.8.231. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-103984 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-103984?
Check whether you run FreeScout at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 1.8.231

Technical details

The load_customer_info AJAX action fails to invoke CustomerPolicy::view() to verify authorization, instead checking only mailbox access with an attacker-supplied mailbox ID. A non-admin agent can craft requests using any accessible mailbox to retrieve arbitrary customer profiles via an email address lookup. The fix adds a proper authorization check via $user->can('view', $customer) before returning customer data.

Affected products

  • FreeScout FreeScout before 1.8.231

Timeline

  • 2026-11-06: disclosed
  • 2026-07-25: patched: Release 1.8.231 includes fix GHSA-cr68-27qv-p5m4

References

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