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 3.1 | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.67% probability of exploitation · percentile 47.0% · 2026-06-19T12:03:05Z |
| Published | 2026-02-25 |
| Last modified | 2026-02-26 |
Underlying weaknesses· 1
References
- https://github.com/freescout-help-desk/freescout/commit/004a8231f6e413af1d4680930b0e2342fd4283f9
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Use of Insufficiently Random Valuescwe-330 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.