CVE-2025-2303
📋 TL;DR
This vulnerability allows authenticated WordPress users with Contributor-level access or higher to execute arbitrary code on the server through unsafe evaluation of user input in the Block Logic plugin. All WordPress sites using vulnerable versions of this plugin are affected, potentially leading to complete server compromise.
💻 Affected Systems
- Block Logic – Full Gutenberg Block Display Control 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
Complete server takeover, data exfiltration, ransomware deployment, and persistent backdoor installation leading to organizational compromise.
Likely Case
Website defacement, malware injection, credential theft, and unauthorized administrative access leading to business disruption.
If Mitigated
Limited impact if proper access controls, network segmentation, and monitoring are in place, though code execution still poses significant risk.
🎯 Exploit Status
Exploitation requires authenticated access but only at Contributor level, which is relatively easy to obtain. The vulnerability is in a publicly available plugin making it attractive to attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.0.8
Vendor Advisory: https://plugins.trac.wordpress.org/browser/block-logic/tags/1.0.8/block-logic.php#L127
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Block Logic – Full Gutenberg Block Display Control'. 4. Click 'Update Now' if available. 5. If no update available, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Disable vulnerable plugin
WordPressTemporarily deactivate the Block Logic plugin to prevent exploitation while planning permanent fix
wp plugin deactivate block-logic
🧯 If You Can't Patch
- Implement strict access controls to limit Contributor-level accounts
- Add web application firewall rules to block suspicious eval() function calls
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for 'Block Logic' version 1.0.8 or earlierCheck Version:
wp plugin get block-logic --field=versionVerify Fix Applied:
Verify plugin version is higher than 1.0.8 or plugin is completely removed📡 Detection & Monitoring
Log Indicators:
- Unusual eval() function calls in PHP logs
- Suspicious POST requests to WordPress admin-ajax.php containing block_logic parameters
- Unexpected process execution from web server user
Network Indicators:
- Outbound connections from web server to unknown IPs
- Unusual traffic patterns from WordPress admin interface
SIEM Query:
source="wordpress_logs" AND (eval OR block_logic_check_logic) AND status=200