CVE-2024-8471
📋 TL;DR
This Cross-Site Scripting (XSS) vulnerability in a job portal application allows attackers to inject malicious scripts through JOBID and USERNAME parameters. If exploited, attackers could steal authenticated users' session details. Organizations using the vulnerable job portal software are affected.
💻 Affected Systems
- Job Portal application
📦 What is this software?
Job Portal by Phpgurukul
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrative session tokens, gaining full control over the job portal system and potentially accessing sensitive applicant data.
Likely Case
Attackers steal regular user session cookies to impersonate legitimate users, access their job applications, and potentially modify or delete their data.
If Mitigated
With proper input validation and output encoding, the vulnerability is prevented, though the attack surface remains if other similar issues exist.
🎯 Exploit Status
Exploitation requires the attacker to trick an authenticated user 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 vendor advisory for specific patch information. 2. Apply any available security updates. 3. If no patch exists, implement input validation and output encoding as workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation for JOBID and USERNAME parameters to reject malicious payloads
Output Encoding
allApply proper output encoding (HTML entity encoding) when displaying user-controlled data in web pages
🧯 If You Can't Patch
- Implement a Web Application Firewall (WAF) with XSS protection rules
- Restrict access to the job portal to trusted networks only
🔍 How to Verify
Check if Vulnerable:
Test the /jobportal/process.php endpoint with XSS payloads in JOBID and USERNAME parameters to see if they executeCheck Version:
Check application version through admin interface or configuration filesVerify Fix Applied:
Retest with XSS payloads after implementing fixes to confirm they are properly sanitized or rejected📡 Detection & Monitoring
Log Indicators:
- Unusual parameter values containing script tags or JavaScript in JOBID/USERNAME fields
- Multiple failed login attempts followed by suspicious parameter values
Network Indicators:
- HTTP requests to /jobportal/process.php with encoded script payloads in parameters
SIEM Query:
source="web_logs" AND uri="/jobportal/process.php" AND (param="JOBID" OR param="USERNAME") AND value MATCHES "<script|javascript:|onload=|onerror="