CVE-2025-31835
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into web pages generated by the WP Plugin Info Card WordPress plugin, which then execute in victims' browsers. It affects all WordPress sites using this plugin from any version up to 5.2.5. Attackers can steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- WP Plugin Info Card 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 steal administrator session cookies, gain full control of WordPress site, install backdoors, deface website, or steal sensitive user data.
Likely Case
Attackers steal user session cookies, redirect visitors to malicious sites, or perform limited actions within the plugin's context.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before reaching user browsers.
🎯 Exploit Status
DOM-based XSS typically requires user interaction but can be triggered via crafted links or forms.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.2.6 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'WP Plugin Info Card'. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 5.2.6+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate wp-plugin-info-card
Content Security Policy
allImplement CSP headers to restrict script execution sources.
Add to .htaccess: Header set Content-Security-Policy "script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "script-src 'self'";
🧯 If You Can't Patch
- Disable the WP Plugin Info Card plugin immediately.
- Implement web application firewall rules to block XSS payloads targeting this plugin.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for WP Plugin Info Card version. If version is 5.2.5 or lower, you are vulnerable.Check Version:
wp plugin get wp-plugin-info-card --field=versionVerify Fix Applied:
After updating, verify plugin version shows 5.2.6 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual POST/GET requests containing script tags or JavaScript to plugin endpoints.
- Multiple failed login attempts following suspicious plugin activity.
Network Indicators:
- HTTP requests with suspicious parameters like <script>, javascript:, or encoded payloads to /wp-content/plugins/wp-plugin-info-card/
SIEM Query:
source="web_access_logs" AND (uri_path="/wp-content/plugins/wp-plugin-info-card/" AND (query="*<script>*" OR query="*javascript:*"))