About this plugin
The Plugin Compatibility Checker helps you keep your WordPress site stable and secure by scanning installed plugins for PHP, Database, and WordPress version compatibility.
0 Database Readiness
6+). Many hosting environments still run older database versions which may silently block updates. This plugin now detects database compatibility and warns you before upgrading.
🆕 PHP Security Notice
The plugin now checks your PHP version against a list of known PHP vulnerabilities (for example PHP2Shell, CVE-2026-109618 / CVE-2026-109619). If your PHP version is affected, a warning appears on the plugin dashboard with the vulnerability name and CVE, and asks you to update PHP or contact your hosting provider. This warning is shown to all users, no license needed.
$2/month License Required (Entry Plan)
You must subscribe to the CompatShield Portal ($2/month recurring) to obtain a license key. 5) and database compatibility directly inside your WordPress admin.
📺 Video Tutorial
Watch step-by-step how to activate your license & run your first scan:
Quick Setup Steps
1) Subscribe → Get your license key from the Portal
2) Add your domain inside the License tab
3) Copy your License Key
4) Paste License Key inside Plugin Settings in WP Admin
5) Click Validate License
6) Click Save Settings
7) Go to Plugin Main Page → Click Rescan
Pro Version (Upgrade)
Upgrading to Pro unlocks the full CompatShield Portal Dashboard with advanced features — vulnerability summary, detailed scan results, notifications, historic analysis, plugin issues overview, premium ZIP upload scanning, and multi-layer compatibility intelligence including database upgrade readiness.
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✨ Key Features
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PHP Compatibility Check – Scan plugins for PHP compatibility.
- $2/month license: Shows PHP compatibility results directly inside WP Plugin backend (up to PHP 8.5)
- Pro license: Deeper breakdowns, insights, and analysis inside Portal Dashboard
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0 readiness.
- Detects outdated MySQL (< 8.0) and MariaDB (< 10.6)
- Warns if hosting environment may block WordPress updates
- Helps prevent upgrade failures
- Pro: Advanced insights and upgrade recommendations
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PHP Security Notice (NEW 🚀) – Detects if your PHP version is affected by a known vulnerability.
- Shows the vulnerability name and CVE ids
- Tells you which PHP version to update to, or to ask your host to update
- The list is updated regularly by CompatShield, no plugin update needed
- Available to all users, no license required
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Plugin Rescan – Quickly rescan whenever you install or update plugins.
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Email Notifications (Pro) – Get notified when scans complete or risks are detected.
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Portal Integration (Pro) – View full detailed results in the CompatShield Portal Dashboard.
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Vulnerability Summary (Pro) – Basic vulnerability insights available in the Portal.
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🔑 Entry Plan vs Pro Plan
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PHP Compatibility Check
5
Pro Plan: Detailed compatibility insights in Portal Dashboard
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Database Compatibility Check
$2 Plan: Basic DB version detection in WP Admin
Pro Plan: Full upgrade readiness insights + risk analysis + recommendations
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Vulnerability Summary
$2 Plan: Not available
Pro Plan: Available in Portal
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Email Notifications
$2 Plan: Not available
Pro Plan: Available
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Portal Dashboard
$2 Plan: Not available
Pro Plan: Full access (compatibility + vulnerabilities + detailed summaries + site overview)
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Custom/Premium Plugins ZIP Scanning
$2 Plan: Not available
Pro Plan: Supported via Portal ZIP uploader
External services
This plugin connects to the following services. No personal data or site address is sent in any of these requests unless stated.
org) – Used on the dashboard to look up the latest WordPress version and public plugin details (plugin slug). Only the public plugin slug is sent. org: Privacy Policy.
org plugin (plugin slug and version). Only the public plugin slug and version are sent. Provided by the WordPress Tide project: Privacy Policy.
com/portal-api/php-vulnerabilities) – Used to download a public list of known PHP vulnerabilities so the dashboard can warn you if your PHP version is affected. The request sends no data about your site; the comparison with your PHP version happens locally. The list is cached for 6 hours.
Provided by CompatShield: Terms | Privacy Policy.
com/portal-api) – Used only after you enter a license key. Sends your license key, your site’s domain name, the WordPress, PHP and database versions, the server operating system and type, and the name, slug and version of your installed plugins and active theme, so that it can run the scan and return results. Provided by CompatShield: Terms | Privacy Policy.