CVE-2026-0580
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into the SourceCodester API Key Manager App 1.0 through the Import Key Handler component. When exploited, it enables cross-site scripting attacks that can steal session cookies, redirect users, or perform actions on their behalf. Organizations using this specific version of the API Key Manager are affected.
💻 Affected Systems
- SourceCodester API Key Manager App
📦 What is this software?
Api Key Manager App by Remyandrade
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, compromise the entire API key management system, and use stolen keys to access other systems or services.
Likely Case
Attackers inject malicious scripts to steal user session cookies, potentially gaining unauthorized access to the API key management interface.
If Mitigated
With proper input validation and output encoding, the impact is limited to failed exploitation attempts with no system compromise.
🎯 Exploit Status
The vulnerability can be exploited remotely without authentication, making it relatively easy to weaponize.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.sourcecodester.com/
Restart Required: No
Instructions:
Check the vendor website for security updates. If no patch is available, consider implementing workarounds or replacing the software.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize all data processed by the Import Key Handler
Output Encoding
allApply proper output encoding (HTML entity encoding) to all user-controlled data before rendering in web pages
🧯 If You Can't Patch
- Disable or restrict access to the Import Key Handler functionality
- Implement a web application firewall (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Test the Import Key Handler with XSS payloads like <script>alert('XSS')</script> and observe if scripts executeCheck Version:
Check application version in admin interface or configuration filesVerify Fix Applied:
Retest with XSS payloads after implementing fixes to confirm scripts no longer execute📡 Detection & Monitoring
Log Indicators:
- Unusual import requests with script tags or JavaScript code
- Multiple failed import attempts with malformed data
Network Indicators:
- HTTP requests to import endpoints containing script tags or JavaScript
SIEM Query:
source="web_logs" AND (uri="*import*" OR uri="*key*" OR uri="*handler*") AND (content="<script>" OR content="javascript:" OR content="onerror=" OR content="onload=")