CVE-2026-41193
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.39% probability · 33th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Source
- security-advisories@github.com
References
- https://github.com/freescout-help-desk/freescout/commit/14f17a5cd22d217103a72b431b47b1f06996227b
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.215
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-r85m-5mc9-cc9w
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-r85m-5mc9-cc9w
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.