CVE-2026-41193CWE-22

FreeScout has Zip Slip path traversal in module installation that allows arbitrary file write leading to RCE

Critical · published April 21, 2026

CVSS v3.1
9.1
EPSS
1%
Percentile
48.6
In the wild
Unconfirmed
What it is

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, FreeScout's module installation feature extracts ZIP archives without validating file paths, allowing an authenticated admin to write files arbitrarily on the server filesystem via a specially crafted ZIP. Version 1.8.215 fixes the vulnerability.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00611 · 48.6th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-04-21T17:15Z
EPSS history
Timeline
  • 21 APR 17:15Z
    FreeScout has Zip Slip path traversal in module installation that allows arbitrary file write leading to RCE
    cvelistv5