Is CVE-2026-27636 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-27636, but active exploitation has not been confirmed.

Can CVE-2026-27636 be exploited remotely?

Yes. CVE-2026-27636 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27636?

CVE-2026-27636 has a CVSS score of 8.8 (HIGH) and an EPSS exploitation probability of 0.20%.

HOME VULNERABILITIESCVE-2026-27636

HIGHPOC

CVE-2026-27636

CWE-434Published: February 25, 2026· Updated: Feb 26, 2026

8.8

CVSS v3.1

EPSS:0.30%probability of exploitation in 30 daysPercentile:53.3th

Official 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.

NVD Source

Technical Analysis

CVE-2026-27636 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

A proof-of-concept (PoC) exploit exists for CVE-2026-27636. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.