9.8

CVE-2026-27637

Exploit

FreeScout's Predictable Authentication Token Enables Account Takeover

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Freescout ≫ Freescout Version < 1.8.206
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.67% 0.47
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-330 Use of Insufficiently Random Values

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9
Vendor Advisory
Exploit
https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc
Not Applicable
https://github.com/freescout-help-desk/freescout/commit/004a8231f6e413af1d4680930b0e2342fd4283f9
Patch