CVE-2025-27331
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users through the WooCommerce Display Products by Tags WordPress plugin. When exploited, it enables DOM-based cross-site scripting attacks that can steal session cookies, redirect users, or deface websites. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- WooCommerce Display Products by Tags 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 steal administrator session cookies, take over WordPress sites, install backdoors, steal customer payment information, or redirect users to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing actions on their behalf.
If Mitigated
With proper Content Security Policy headers and input validation, the impact is reduced to potential defacement or limited data exposure.
🎯 Exploit Status
DOM-based XSS typically requires user interaction but can be triggered through crafted links or forms.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.1 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Go to Plugins → Installed Plugins. 3. Find 'WooCommerce Display Products by Tags'. 4. Click 'Update Now' if available. 5. If no update appears, deactivate and delete the plugin, then install the latest version from WordPress repository.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the WooCommerce Display Products by Tags plugin until patched
wp plugin deactivate woocommerce-display-products-by-tags
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads
- Disable the plugin entirely and use alternative product display methods
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'WooCommerce Display Products by Tags' version 1.0.0 or earlierCheck Version:
wp plugin get woocommerce-display-products-by-tags --field=versionVerify Fix Applied:
Verify plugin version is 1.0.1 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST/GET requests with script tags or JavaScript payloads to plugin endpoints
- Multiple failed login attempts following suspicious script injections
Network Indicators:
- HTTP requests containing <script> tags or JavaScript functions like alert(), document.cookie in URL parameters
SIEM Query:
source="web_server" AND (uri="*<script>*" OR uri="*javascript:*" OR uri="*onerror=*" OR uri="*onload=*")