Code Injection Vulnerability in cym1102 nginxWebUI Affected by Remote Exploitation Risks
CVE-2026-90581

5.3MEDIUM

Key Information:

Vendor

Cym1102

Status
Nginxwebui
Vendor
CVE Published:
13 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90581?

A vulnerability has been identified in the cym1102 nginxWebUI versions up to 4.4.2, specifically in the autoUpdate function of the MainController. This flaw permits manipulation of the argument url, leading to potential code injection. Remote attackers may exploit this vulnerability, presenting significant risks for systems using the affected version. A pull request to remediate the issue is currently pending acceptance, highlighting the urgency for users to monitor the situation and apply necessary measures.

Affected Version(s)

nginxWebUI 4.4.0

nginxWebUI 4.4.1

nginxWebUI 4.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-90581 - Proof of Concept

References

https://vuldb.com/vuln/403166
vdb-entrytechnical-description
https://vuldb.com/vuln/403166/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90581
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

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

lem0n817 (VulDB User)
VulDB CNA Team
.