CVE-2025-14392
📋 TL;DR
The Simple Theme Changer WordPress plugin has a missing capability check vulnerability that allows authenticated users with subscriber-level access or higher to modify plugin settings. This affects all WordPress sites using version 1.0 or earlier of the plugin. Attackers can change theme-related settings without proper authorization.
💻 Affected Systems
- Simple Theme Changer 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 modify site appearance, inject malicious code through theme settings, or disrupt site functionality by changing critical theme configurations.
Likely Case
Unauthorized users changing theme settings, potentially causing site display issues or minor disruptions to user experience.
If Mitigated
Minimal impact with proper user role management and monitoring of plugin settings changes.
🎯 Exploit Status
Exploitation requires authenticated access (subscriber role or higher). Attack involves sending crafted requests to vulnerable plugin actions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://plugins.trac.wordpress.org/browser/simple-theme-changer/
Restart Required: No
Instructions:
1. Remove the Simple Theme Changer plugin completely. 2. Find alternative theme management plugins with proper security controls. 3. No official patch exists as plugin appears abandoned.
🔧 Temporary Workarounds
Remove vulnerable plugin
allCompletely uninstall the Simple Theme Changer plugin from WordPress
wp plugin delete simple-theme-changer
Or delete via WordPress admin panel: Plugins > Installed Plugins > Simple Theme Changer > Delete
Restrict user roles
allLimit subscriber-level access or implement additional access controls
Use WordPress role management plugins to restrict capabilities
Review and minimize user accounts with subscriber or higher roles
🧯 If You Can't Patch
- Disable the plugin immediately while seeking alternative solutions
- Implement web application firewall rules to block requests to vulnerable plugin endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel: Plugins > Installed Plugins, look for Simple Theme Changer version 1.0 or earlierCheck Version:
wp plugin list --name=simple-theme-changer --field=versionVerify Fix Applied:
Confirm plugin is removed or deactivated in WordPress plugins list📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /wp-admin/admin-ajax.php with actions: user_theme_admin, display_method_admin, set_change_theme_button_name
- Multiple theme setting changes from non-admin users
Network Indicators:
- HTTP requests to WordPress admin-ajax.php with plugin-specific action parameters from unauthorized IPs
SIEM Query:
source="wordpress.log" AND (action="user_theme_admin" OR action="display_method_admin" OR action="set_change_theme_button_name") AND user_role!="administrator"