CVE-2025-31076
📋 TL;DR
This Server-Side Request Forgery (SSRF) vulnerability in WP Compress for MainWP allows attackers to make the vulnerable server send HTTP requests to internal or external systems. It affects WordPress sites using the WP Compress for MainWP plugin from all versions through 6.30.03. Attackers could potentially access internal services or use the server as a proxy for malicious requests.
💻 Affected Systems
- WP Compress for MainWP 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, exfiltrate sensitive data from internal networks, perform port scanning of internal infrastructure, or use the server as a proxy for attacks against other systems.
Likely Case
Most attackers would use this to scan internal networks, access metadata services (like AWS/Azure instance metadata), or make the server perform requests to attacker-controlled domains for reconnaissance.
If Mitigated
With proper network segmentation and egress filtering, impact would be limited to the server itself making unauthorized outbound requests, with reduced access to internal resources.
🎯 Exploit Status
SSRF vulnerabilities typically require some level of access or specific conditions to trigger. The exact exploitation vector isn't publicly documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.30.04 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'WP Compress for MainWP'. 4. Click 'Update Now' if available. 5. If no update shows, manually download version 6.30.04+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate wp-compress-mainwp
Network Egress Filtering
allRestrict outbound HTTP/HTTPS requests from web servers to only necessary destinations
🧯 If You Can't Patch
- Implement strict network segmentation to isolate web servers from internal resources
- Deploy a Web Application Firewall (WAF) with SSRF protection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for WP Compress for MainWP versionCheck Version:
wp plugin get wp-compress-mainwp --field=versionVerify Fix Applied:
Verify plugin version is 6.30.04 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from web server to internal IPs or unusual domains
- Multiple failed HTTP requests to internal network ranges from web server process
Network Indicators:
- Web server making HTTP requests to internal services (10.x, 172.16.x, 192.168.x)
- Web server contacting metadata services (169.254.169.254 for AWS, etc.)
SIEM Query:
source="web_server_logs" AND (dest_ip=~"10\.\d+\.\d+\.\d+" OR dest_ip=~"172\.(1[6-9]|2[0-9]|3[0-1])\.\d+\.\d+" OR dest_ip=~"192\.168\.\d+\.\d+") AND http_method="GET"