Vulnerability · Published Apr 21, 2026 · Assigned by GitHub_M
CVE-2026-41193FreeScout has Zip Slip path traversal in module installation that allows arbitrary file write leading to RCE
Critical 9.1
In plain English
A critical-severity path traversal in freescout from freescout-help-desk. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.4%top 66.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| freescout-help-desk | freescout | < 1.8.215 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-r85m-5mc9-cc9w x_refsource_CONFIRM
- https://github.com/freescout-help-desk/freescout/commit/14f17a5cd22d217103a72b431b47b1f06996227b x_refsource_MISC
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.215 x_refsource_MISC