CVE-2026-27637CRITICAL 9.8EPSS p47.0%

CVE-2026-27637CVE-2026-27637

Description

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.67% probability of exploitation · percentile 47.0% · 2026-06-19T12:03:05Z
Published2026-02-25
Last modified2026-02-26

Underlying weaknesses· 1

CWE-330

References

  1. https://github.com/freescout-help-desk/freescout/commit/004a8231f6e413af1d4680930b0e2342fd4283f9
  2. https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9
  3. https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc
  4. https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9
  5. https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc

1

TypeTargetConfidenceTier
WeaknessUse of Insufficiently Random Valuescwe-3300%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-45294
CVE
CVE-2026-41902
CVE
CVE-2025-58163
CVE
CVE-2026-27636
CVE
CVE-2025-54366
CVE
CVE-2026-40496
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.