CVE-2026-27636 HIGH

CVE-2026-27636: FreeScout: Missing .htaccess in Restricted File Extensions Allows Remote Code Execution on Apache

Vendor Freescout-Help-Desk

Product freescout

Weakness CWE-434 · Unrestricted file upload

Published February 25, 2026

Last update February 25, 2026

View on NVD All CVEs

CVSS base score

8.8/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

Description

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.

Key dates

Disclosure timeline

February 25, 2026 CVE published

February 25, 2026 Record updated