CVE-2024-35351
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts via the 'name' parameter in the /classes/SystemSettings.php?f=update_settings endpoint in Diño Physics School Assistant version 2.3. When exploited, this stored cross-site scripting (XSS) vulnerability can execute arbitrary JavaScript in victims' browsers. Users of the affected software version are at risk.
💻 Affected Systems
- Diño Physics School Assistant
📦 What is this software?
Dino Physics School Assistant by Dino Physics School Assistant Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, deface the application, or redirect users to malicious sites, potentially leading to full account compromise.
Likely Case
Attackers inject malicious scripts that execute when administrators or users view the affected settings page, potentially stealing session tokens or performing limited unauthorized actions.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before execution, preventing successful exploitation.
🎯 Exploit Status
Exploitation requires the ability to submit requests to the vulnerable endpoint, which typically requires authentication. The vulnerability is stored XSS, meaning injected scripts persist and affect subsequent users.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch is available. Consider upgrading to a newer version if available, or implement input validation and output encoding in the affected file.
🔧 Temporary Workarounds
Input Validation and Output Encoding
allImplement proper input validation for the 'name' parameter and encode output to prevent script execution.
Edit /classes/SystemSettings.php to add validation and encoding functions
Web Application Firewall (WAF) Rules
allConfigure WAF to block requests containing suspicious script patterns in the 'name' parameter.
Add WAF rule: Block requests with script tags or JavaScript patterns in parameters
🧯 If You Can't Patch
- Restrict access to the vulnerable endpoint using network controls or authentication requirements
- Implement Content Security Policy (CSP) headers to limit script execution
🔍 How to Verify
Check if Vulnerable:
Test by submitting a script payload in the 'name' parameter to /classes/SystemSettings.php?f=update_settings and checking if it executes when the page is viewed.Check Version:
Check the software version in the application interface or configuration files.Verify Fix Applied:
After implementing fixes, test with the same payload to ensure scripts are properly sanitized and do not execute.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /classes/SystemSettings.php with suspicious 'name' parameter values containing script tags or JavaScript
Network Indicators:
- Unusual POST requests to the vulnerable endpoint with encoded script payloads
SIEM Query:
source="web_logs" AND uri="/classes/SystemSettings.php" AND (param="name" AND value CONTAINS "<script>" OR "javascript:")