CVE-2025-46526
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into web pages generated by the My Custom Widgets WordPress plugin. When users visit a specially crafted URL, the script executes in their browser, potentially stealing session cookies or performing actions on their behalf. All WordPress sites using My Custom Widgets version 2.0.5 or earlier are affected.
💻 Affected Systems
- My Custom Widgets 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, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers steal user session cookies or credentials, perform actions as authenticated users, or redirect users to phishing pages.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before reaching users' browsers.
🎯 Exploit Status
Reflected XSS vulnerabilities are commonly exploited and require minimal technical skill. Attackers need to trick users into clicking malicious links.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.6 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find My Custom Widgets and click 'Update Now'. 4. Verify version is 2.0.6 or later.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the My Custom Widgets plugin until patched
wp plugin deactivate mycustomwidget
Web Application Firewall
allDeploy WAF rules to block XSS payloads targeting this plugin
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Use browser security extensions that block reflected XSS attacks
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > My Custom Widgets version. If version is 2.0.5 or earlier, you are vulnerable.Check Version:
wp plugin get mycustomwidget --field=versionVerify Fix Applied:
After updating, verify plugin version shows 2.0.6 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual GET/POST requests containing script tags or JavaScript payloads
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests with suspicious parameters containing <script> tags or JavaScript code
- Traffic patterns showing users being redirected after visiting specific URLs
SIEM Query:
source="web_server_logs" AND ("<script" OR "javascript:" OR "onload=" OR "onerror=") AND uri_path="/wp-content/plugins/mycustomwidget/"