CVE-2026-45295: FreeScout Vulnerable to Unauthenticated Thread Read-Status Manipulation and Conversation Enumeration via Open Tracking Endpoint

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-20 · updated 2026-10-24
Weakness: CWE-639

Description

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.219, the open tracking endpoint `GET /thread/read/{conversation_id}/{thread_id}` allows unauthenticated attackers to enumerate valid conversation and thread IDs, and modify thread state (`opened_at` timestamp) without any authentication. Version 1.8.219 patches the issue.

Affected products

freescout-help-desk freescout: before 1.8.219

References

https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-qjr9-6v9q-3r72
https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-qjr9-6v9q-3r72

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