CVE-2025-31878
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the UPC/EAN/GTIN Code Generator WordPress plugin that allows unauthorized users to change plugin settings. Attackers can exploit incorrectly configured access controls to modify configuration options. This affects all WordPress sites using versions up to 2.0.2 of this plugin.
💻 Affected Systems
- UPC/EAN/GTIN Code Generator 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
An attacker could modify plugin settings to disrupt barcode generation functionality, potentially affecting e-commerce operations or injecting malicious code if settings allow code execution.
Likely Case
Unauthorized users change plugin configuration settings, causing barcode generation failures or incorrect formatting that impacts product labeling and inventory systems.
If Mitigated
With proper access controls, only authorized administrators can modify plugin settings, preventing unauthorized configuration changes.
🎯 Exploit Status
Exploitation requires some level of access to the WordPress installation but bypasses intended authorization checks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'UPC/EAN/GTIN Code Generator'. 4. Click 'Update Now' if update available. 5. If no update available, download version 2.0.3+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDeactivate the plugin until patched to prevent exploitation
wp plugin deactivate upc-ean-barcode-generator
Access Restriction
linuxRestrict access to WordPress admin area using web server rules or firewall
# Example Apache .htaccess rule: Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
🧯 If You Can't Patch
- Remove the plugin entirely if barcode functionality is not critical
- Implement network segmentation to isolate the WordPress installation from sensitive systems
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for UPC/EAN/GTIN Code Generator version 2.0.2 or earlierCheck Version:
wp plugin get upc-ean-barcode-generator --field=versionVerify Fix Applied:
Verify plugin version is 2.0.3 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unauthorized POST requests to plugin settings endpoints
- Changes to plugin configuration without admin user activity
Network Indicators:
- Unusual traffic to /wp-admin/admin-ajax.php or plugin-specific admin endpoints
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "upc-ean") AND response_code=200 AND user_agent NOT IN admin_browsers