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CVE-2026-90581: Code Injection in cym1102 nginxWebUI

0
Medium
VulnerabilityCVE-2026-90581cvecve-2026-90581
Published: 09/13/2026 (09/13/2026, 19:30:09 UTC)
Source: CVE Database V5
Vendor/Project: cym1102
Product: nginxWebUI

Description

CVE-2026-90581 is a medium severity code injection vulnerability in cym1102 nginxWebUI versions 4.4.0, 4.4.1, and 4.4.2. The flaw exists in the MainController.autoUpdate function within the /adminPage/main/autoUpdate file, where manipulation of the 'url' argument can lead to code injection. Remote exploitation is possible. A fix has been developed but is pending acceptance in a pull request.

CVSS v4.0

Score 5.3medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
Low
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Affected software

cym1102

nginxWebUI

Affected versions
=4.4.0=4.4.1=4.4.2
GitHub Actionsmore threats →ai
cym1102/nginxWebUI
pkg:github/cym1102/nginxWebUI
Affected versions
=4.4.0=4.4.1=4.4.2
CPE configurations
cpe:2.3:a:cym1102:nginxwebui:*:*:*:*:*:*:*:*

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/13/2026, 20:01:30 UTC

Technical Analysis

This vulnerability affects cym1102 nginxWebUI up to version 4.4.2. It arises from improper handling of the 'url' argument in the MainController.autoUpdate function, allowing an attacker to inject code remotely. The vulnerability has been publicly disclosed, and exploit code may be available. However, the fix is not yet officially released, as the pull request addressing the issue awaits acceptance.

Potential Impact

Successful exploitation allows remote attackers to perform code injection via the 'url' parameter in the autoUpdate function, potentially leading to unauthorized code execution. The CVSS 4.0 base score is 5.3 (medium severity), indicating a moderate impact with network attack vector, low attack complexity, and no user interaction required.

Mitigation Recommendations

A fix for this vulnerability is not yet officially available. The vendor has a pull request pending acceptance to address the issue. Until the patch is accepted and released, users should exercise caution when exposing the affected functionality and consider applying temporary controls such as input validation or restricting access to the vulnerable endpoint. Monitor the vendor advisory for updates on the patch status.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-09-12T16:44:07.221Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6aa6fdb655bf5e2cf5ff9409

Added to database: 09/13/2026, 19:47:02 UTC

Last enriched: 09/13/2026, 20:01:30 UTC

Last updated: 09/13/2026, 20:10:43 UTC

Views: 4

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