CVE-2025-61532
📋 TL;DR
This CVE describes a Cross-Site Scripting (XSS) vulnerability in SVX Portal versions 2.7A through 2.7A that allows attackers to inject malicious scripts via the TG parameter in the last_heard_page.php component. This affects organizations using SVX Portal for amateur radio communications management. Attackers could execute arbitrary JavaScript in users' browsers when they visit the vulnerable page.
💻 Affected Systems
- SVX Portal
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or deliver malware payloads through the vulnerable portal interface.
Likely Case
Session hijacking, credential theft, or defacement of the portal interface through injected content.
If Mitigated
Limited impact with proper input validation and output encoding, potentially only affecting the specific vulnerable parameter with minimal data exposure.
🎯 Exploit Status
Exploitation requires crafting malicious TG parameter values and likely requires user interaction or social engineering to trigger.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: SVX Portal version 1.3.0 or later
Vendor Advisory: https://docs.meeco.me/releases/svx-1.3.0#portal
Restart Required: No
Instructions:
1. Backup current SVX Portal installation. 2. Download and install SVX Portal version 1.3.0 or later from the official repository. 3. Verify the installation completes successfully. 4. Test the last_heard_page.php functionality.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to sanitize the TG parameter before processing
Modify last_heard_page.php to include: $tg_param = htmlspecialchars($_GET['TG'], ENT_QUOTES, 'UTF-8');
Content Security Policy
allImplement CSP headers to restrict script execution sources
Add to Apache .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to Nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";
🧯 If You Can't Patch
- Disable or restrict access to last_heard_page.php component
- Implement web application firewall rules to block malicious TG parameter patterns
🔍 How to Verify
Check if Vulnerable:
Test by accessing last_heard_page.php with a test payload like: last_heard_page.php?TG=<script>alert('test')</script> and check if script executesCheck Version:
Check SVX Portal version in admin interface or review installation files for version markersVerify Fix Applied:
After patching, repeat the test payload and confirm no script execution occurs📡 Detection & Monitoring
Log Indicators:
- Unusual TG parameter values containing script tags or JavaScript in access logs
- Multiple failed attempts to access last_heard_page.php with malformed parameters
Network Indicators:
- HTTP requests to last_heard_page.php containing script tags in TG parameter
- Unusual outbound connections from portal server after XSS payload execution
SIEM Query:
source="web_access_logs" AND uri="*last_heard_page.php*" AND (query="*<script>*" OR query="*javascript:*")