CVE-2026-27637
CRITICALCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4Description
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.206, FreeScout's `TokenAuth` middleware uses a predictable authentication token computed as `MD5(user_id + created_at + APP_KEY)`. This token is static (never expires/rotates), and if an attacker obtains the `APP_KEY` - a well-documented and common exposure vector in Laravel applications - they can compute a valid token for any user, including the administrator, achieving full account takeover without any password. This vulnerability can be exploited on its own or in combination with CVE-2026-27636. Version 1.8.206 fixes both vulnerabilities.
Analysis
Predictable password reset tokens in FreeScout help desk before 1.8.206. Weak random number generation allows attackers to predict reset tokens and take over accounts. …
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Remediation
Within 24 hours: Identify all FreeScout installations and their versions; isolate or disable public-facing instances running versions before 1.8.206. Within 7 days: Apply vendor patch to version 1.8.206 or later across all FreeScout deployments; conduct authentication logs review for suspicious token usage. …
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External POC / Exploit Code
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