---
cve: "CVE-2026-27636"
severity: "HIGH"
cvss: 8.8
epss: "2.1%"
vendor: "freescout-help-desk"
kev: false
exploited: false
published: "2026-02-25 04:16:03"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T07:48:21+02:00"
---

# CVE-2026-27636

> 8.8 HIGH · 🧪 PoC

## Beschreibung

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.206, FreeScout's file upload restriction list in `app/Misc/Helper.php` does not include `.htaccess` or `.user.ini` files. On Apache servers with `AllowOverride All` (a common configuration), an authenticated user can upload a `.htaccess` file to redefine how files are processed, enabling Remote Code Execution. This vulnerability can be exploited on its own or in combination with CVE-2026-27637. Version 1.8.206 fixes both vulnerabilities.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 63b225e380ffa4dc9a4816a18a53d46b69650ac0 (Commit)
- 9984071e6f1b4e633fdcffcea82bbebc9c1e009c (Commit)

## Referenzen

- <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/commit/9984071e6f1b4e633fdcffcea82bbebc9c1e009c>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-27636) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_