Unrestricted File Upload Vulnerability in arizu-id fast-tunnel Plugin
CVE-2026-113382

5.3MEDIUM

Key Information:

Vendor

Arizu-id

Status
Fast-tunnel
Vendor
CVE Published:
20 October 2026

What is CVE-2026-113382?

A security vulnerability has been identified in arizu-id fast-tunnel version 1.0.0, specifically within the function ZipArchive::extractTo located in the file backend/api_plugins.php. This flaw allows attackers to manipulate the argument plugin_file, leading to unrestricted file uploads, potentially allowing the execution of malicious files on the server. The vulnerability can be exploited remotely, posing a significant risk to users of the affected version. The vendor has released a patch in version 1.0.1, and it is strongly recommended that users upgrade to this version to mitigate the risk associated with this vulnerability.

Affected Version(s)

fast-tunnel 1.0.0

fast-tunnel 1.0.1

References

https://vuldb.com/vuln/422655
vdb-entrytechnical-description
https://vuldb.com/vuln/422655/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-113382
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

c0rrup1_1 (VulDB User)
VulDB CNA Team
.