CVE-2025-53457
📋 TL;DR
This Server-Side Request Forgery (SSRF) vulnerability in the SEO Backlink Monitor WordPress plugin allows attackers to make unauthorized requests from the server to internal or external systems. It affects all WordPress sites running SEO Backlink Monitor versions up to and including 1.6.0. Attackers could potentially access internal services or perform port scanning through the vulnerable server.
💻 Affected Systems
- SEO Backlink Monitor WordPress Plugin
⚠️ 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 access internal services, perform port scanning, interact with cloud metadata services, or use the server as a proxy for attacks against other systems.
Likely Case
Information disclosure from internal services, limited port scanning, or using the server to make requests to external systems that appear legitimate.
If Mitigated
Limited impact with proper network segmentation, firewall rules blocking internal requests, and web application firewalls detecting SSRF patterns.
🎯 Exploit Status
Exploitation requires understanding of SSRF techniques and potentially authentication depending on plugin functionality.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.6.0
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find SEO Backlink Monitor. 4. Click 'Update Now' if available. 5. If no update available, deactivate and remove the plugin.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the SEO Backlink Monitor plugin until patched.
wp plugin deactivate seo-backlink-monitor
Network Restrictions
allConfigure web application firewall or server firewall to block outbound requests from web server to internal networks.
🧯 If You Can't Patch
- Deactivate and remove the SEO Backlink Monitor plugin immediately
- Implement strict outbound firewall rules on the web server to prevent requests to internal IP ranges
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for SEO Backlink Monitor version 1.6.0 or earlier.Check Version:
wp plugin get seo-backlink-monitor --field=versionVerify Fix Applied:
Verify plugin version is higher than 1.6.0 or plugin is completely removed.📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from web server process
- Requests to internal IP addresses from web application
- Multiple failed connection attempts to various ports
Network Indicators:
- Web server making unexpected HTTP requests to internal services
- Port scanning patterns originating from web server
SIEM Query:
source="web_server_logs" AND (dest_ip=10.0.0.0/8 OR dest_ip=172.16.0.0/12 OR dest_ip=192.168.0.0/16) AND user_agent="WordPress"