CVE-2025-63725
📋 TL;DR
This reflected XSS vulnerability in SVX Portal 2.7A allows attackers to inject malicious scripts via the id parameter in Recivers.php. When exploited, these scripts execute in victims' browsers, potentially stealing session cookies, redirecting users, or performing actions on their behalf. Organizations running SVX Portal 2.7A are affected.
💻 Affected Systems
- SVX Portal
📦 What is this software?
Svx Portal by Radioinorr
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator session cookies, gain full administrative access to the portal, and potentially compromise the entire system or pivot to internal networks.
Likely Case
Attackers steal user session cookies to hijack accounts, redirect users to phishing sites, or deface the portal interface.
If Mitigated
Script execution is blocked by modern browser XSS protections or CSP headers, limiting impact to minor UI disruption.
🎯 Exploit Status
Exploitation requires user interaction (clicking malicious link) but is trivial to craft.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Implement workarounds or upgrade to a newer version if available.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to sanitize the id parameter in Recivers.php
Edit Recivers.php to add: $id = htmlspecialchars($_GET['id'], ENT_QUOTES, 'UTF-8');
Web Application Firewall (WAF) Rules
allBlock malicious XSS payloads in the id parameter
Add WAF rule: Block requests with <script>, javascript:, or on* attributes in id parameter
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Restrict access to Recivers.php endpoint via network ACLs or authentication
🔍 How to Verify
Check if Vulnerable:
Test by accessing Recivers.php?id=<script>alert('XSS')</script> and checking if script executesCheck Version:
Check SVX Portal version in admin interface or configuration filesVerify Fix Applied:
Test same payload after fixes; script should not execute and should be properly encoded📡 Detection & Monitoring
Log Indicators:
- HTTP requests to Recivers.php with suspicious id parameter values containing script tags or JavaScript
Network Indicators:
- Unusual outbound connections from portal server after XSS exploitation
SIEM Query:
source="web_logs" AND uri="/Recivers.php" AND query CONTAINS "<script>" OR "javascript:"