ZDI-CAN-28475: ZDI-26-202: (Pwn2Own) QNAP TS-453E Hyper Data Protector Plugin query_original_file_size SQL Injection Remote Code Execution Vulnerability

Published Mar 16, 2026

Updated

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of QNAP TS-453E. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The ZDI has assigned a CVSS rating of 8.0. The following CVEs are assigned: CVE-2025-59389.

Affected Software

1 affected component

QNAP TS-453E

Event History

Mar 16, 2026

Advisory Published

via ZDI·05:00 AM

Data Sourced

via ZDI·05:00 AM

Description

Frequently Asked Questions

What is the severity of ZDI-CAN-28475?

ZDI-CAN-28475 is considered a critical vulnerability due to its potential for remote code execution.

How do I fix ZDI-CAN-28475?

To mitigate ZDI-CAN-28475, update your QNAP TS-453E with the latest firmware provided by QNAP.

Who is affected by ZDI-CAN-28475?

Owners of QNAP TS-453E devices that use the Hyper Data Protector Plugin are affected by ZDI-CAN-28475.

Can ZDI-CAN-28475 be exploited without authentication?

Exploitation of ZDI-CAN-28475 requires authentication, making it necessary for attackers to gain access first.

What type of attack does ZDI-CAN-28475 facilitate?

ZDI-CAN-28475 facilitates SQL injection that can lead to remote code execution.