ZDI 2026-03-16

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

CVE-2025-59389

Machine-generated analysis · WAYSCloud LLM

The advisory notes that authentication is required but can be bypassed, which may indicate a flaw in the access control implementation for the Hyper Data Protector Plugin.

Context

The QNAP TS-453E with the Hyper Data Protector Plugin is affected. The vulnerability is a SQL injection that can lead to remote code execution. The advisory states that an attacker must be network-adjacent and that authentication can be bypassed despite being nominally required. Worth noting is that the vulnerability is tied to a specific plugin, not the base OS.

Operator considerations

Check: Determine if the Hyper Data Protector Plugin is installed on QNAP TS-453E devices.

From Zero Day Initiative ↗

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.

Read the full advisory on ZDI →