CVE-2024-8473
📋 TL;DR
A Cross-Site Scripting (XSS) vulnerability in the Job Portal software allows attackers to inject malicious scripts via the user_email parameter in the admin login page. This could enable session hijacking of authenticated administrators. Organizations using vulnerable versions of Job Portal are affected.
💻 Affected Systems
- Job Portal software
📦 What is this software?
Job Portal by Phpgurukul
⚠️ Risk & Real-World Impact
Worst Case
Attacker steals administrator session cookies, gains full administrative access to the job portal, and potentially compromises user data or deploys additional malware.
Likely Case
Attacker captures administrator session to modify job postings, access applicant data, or deface the portal interface.
If Mitigated
With proper input validation and output encoding, the attack would fail to execute malicious scripts.
🎯 Exploit Status
Exploitation requires tricking an administrator into clicking a malicious link or visiting a crafted page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-job-portal
Restart Required: No
Instructions:
1. Review the INCIBE advisory for specific patch details. 2. Apply any available updates from the vendor. 3. If no patch exists, implement input validation and output encoding in /jobportal/admin/login.php.
🔧 Temporary Workarounds
Implement Input Validation
allAdd server-side validation to sanitize the user_email parameter before processing.
Edit /jobportal/admin/login.php to include email format validation and HTML entity encoding
Add Content Security Policy
allImplement CSP headers to restrict script execution from untrusted sources.
Add header: Content-Security-Policy: default-src 'self'
🧯 If You Can't Patch
- Restrict access to /jobportal/admin/ directory to trusted IP addresses only
- Implement web application firewall (WAF) rules to block XSS payloads in the user_email parameter
🔍 How to Verify
Check if Vulnerable:
Test by submitting a payload like <script>alert('XSS')</script> in the user_email field of /jobportal/admin/login.php and check if script executes.Check Version:
Check software documentation or version files within the job portal installation directory.Verify Fix Applied:
After applying fixes, repeat the test with the same payload; script should not execute and input should be properly encoded.📡 Detection & Monitoring
Log Indicators:
- Unusual length or special characters in user_email parameter in admin login logs
- Multiple failed login attempts with suspicious email values
Network Indicators:
- HTTP requests to /jobportal/admin/login.php containing script tags or JavaScript in parameters
SIEM Query:
source="web_logs" AND uri_path="/jobportal/admin/login.php" AND (user_email CONTAINS "<script>" OR user_email CONTAINS "javascript:")