Cross Site Scripting Vulnerability in cym1102 nginxWebUI Affected by Web Management Interface
CVE-2026-2145

5.1MEDIUM

Key Information:

Vendor

Cym1102

Status
Nginxwebui
Vendor
CVE Published:
8 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2145?

A critical flaw was discovered in the cym1102 nginxWebUI prior to version 4.3.7, where an unknown function within the Web Management Interface's configuration file allows attackers to inject malicious scripts. This vulnerability can be exploited remotely by manipulating the 'nginxDir' argument, leading to potential cross site scripting attacks. With known exploits publicly available and a lack of response from the developers following an early issue report, users are urged to take immediate action to mitigate risks.

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Affected Version(s)

nginxWebUI 4.3.0

nginxWebUI 4.3.1

nginxWebUI 4.3.2

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-2026-2145 - Proof of Concept

References

https://vuldb.com/?id.344847
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344847
signaturepermissions-required
https://vuldb.com/?submit.747404
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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