Critical severity · published Apr 21, 2026
CVE-2026-41193
FreeScout has Zip Slip path traversal in module installation that allows arbitrary file write leading to RCE
9.1
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
freescout · freescout-help-desk
< 1.8.215 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41193
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41193
github.com
https://github.com/freescout-help-desk/freescout/commit/14f17a5cd22d217103a72b431b47b1f06996227b
github.com
https://github.com/freescout-help-desk/freescout/releases/tag/1.8.215
github.com
https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-r85m-5mc9-cc9w
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