CVE-2026-90581: cym1102 nginxWebUI autoUpdate MainController.autoUpdate code injection

Q: What access does an attacker need to exploit this issue?

The CVSS vector indicates low privileges are required. Exploitation can be performed remotely over the network and does not require user interaction.

Q: What is the expected security impact if exploitation succeeds?

The reported CVSS metrics rate confidentiality, integrity, and availability impact as low. The affected functionality is susceptible to code injection through the url argument.

Q: Is an accepted fix available?

The available information states that a pull request to fix the issue is awaiting acceptance. It does not identify an accepted fix or a corrected release version.

Published Sep 13, 2026

Updated

A vulnerability was determined in cym1102 nginxWebUI up to 4.4.2. This issue affects the function MainController.autoUpdate of the file /adminPage/main/autoUpdate. This manipulation of the argument url causes code injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.

Affected Software

1 affected component

nginxWebUI/cym1102<=4.4.2

Event History

Sep 13, 2026

CVE Published

via MITRE·07:30 PM

Data Sourced

via MITRE·07:30 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What access does an attacker need to exploit this issue?

The CVSS vector indicates low privileges are required. Exploitation can be performed remotely over the network and does not require user interaction.

What is the expected security impact if exploitation succeeds?

The reported CVSS metrics rate confidentiality, integrity, and availability impact as low. The affected functionality is susceptible to code injection through the url argument.

Is an accepted fix available?