CVE-2025-50052
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into web pages generated by the Flexo Counter WordPress plugin. When users visit a specially crafted URL, the script executes in their browser, potentially stealing cookies, session tokens, or performing actions on their behalf. All WordPress sites running vulnerable versions of Flexo Counter are affected.
💻 Affected Systems
- Flexo Counter 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 through phishing links, leading to account compromise.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before reaching users.
🎯 Exploit Status
Reflected XSS typically requires user interaction (clicking malicious link), but exploitation is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.0001
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Flexo Counter and click 'Update Now'. 4. If no update is available, deactivate and delete the plugin.
🔧 Temporary Workarounds
Disable Flexo Counter Plugin
allTemporarily deactivate the vulnerable plugin until patched.
wp plugin deactivate flexo-counter
Implement WAF Rules
allConfigure web application firewall to block XSS payloads targeting Flexo Counter endpoints.
🧯 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 > Installed Plugins for Flexo Counter version 1.0001 or earlier.Check Version:
wp plugin get flexo-counter --field=versionVerify Fix Applied:
Verify plugin version is greater than 1.0001 and test XSS payloads no longer execute.📡 Detection & Monitoring
Log Indicators:
- Unusual GET/POST requests containing script tags or JavaScript payloads to Flexo Counter endpoints.
- Multiple failed XSS attempts in web server logs.
Network Indicators:
- HTTP requests with suspicious parameters like <script>alert()</script> or encoded equivalents.
SIEM Query:
source="web_logs" AND (uri_path="/wp-content/plugins/flexo-counter/" OR user_agent="*flexo-counter*") AND (request_parameters="*<script>*" OR request_parameters="*javascript:*")