CVE-2025-2477
📋 TL;DR
The CryoKey WordPress plugin has a reflected cross-site scripting vulnerability in the 'ckemail' parameter that allows unauthenticated attackers to inject malicious scripts. When users click specially crafted links, attackers can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using CryoKey version 2.4 or earlier are affected.
💻 Affected Systems
- WordPress CryoKey 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 administrative access to WordPress, install backdoors, deface websites, or exfiltrate sensitive data.
Likely Case
Attackers steal user session cookies to hijack accounts, redirect users to phishing sites, or perform limited actions within user permissions.
If Mitigated
With proper web application firewalls and security headers, malicious scripts are blocked before reaching users, preventing successful exploitation.
🎯 Exploit Status
Exploitation requires social engineering to trick users into clicking malicious links. No authentication required to trigger the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.5 or later
Vendor Advisory: https://wordpress.org/plugins/cryokey/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find CryoKey plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install latest version from WordPress repository.
🔧 Temporary Workarounds
Web Application Firewall Rule
allBlock requests containing malicious script patterns in the ckemail parameter
Add WAF rule: Block if contains '<script' in query parameters
Add WAF rule: Block if contains 'javascript:' in query parameters
Content Security Policy Header
allImplement strict CSP to prevent script execution from untrusted 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
- Deactivate CryoKey plugin immediately
- Implement strict Content Security Policy headers and web application firewall rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for CryoKey version. If version is 2.4 or earlier, system is vulnerable.Check Version:
wp plugin list --name=cryokey --field=version (if WP-CLI installed) or check WordPress admin plugins pageVerify Fix Applied:
After update, verify CryoKey version shows 2.5 or later in WordPress plugins list. Test with safe payload: /?ckemail=<script>alert('test')</script> should not execute script.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing '<script' or 'javascript:' in ckemail parameter
- Unusual GET requests to WordPress with long query strings containing script tags
Network Indicators:
- HTTP GET requests with script tags in query parameters
- Requests to WordPress sites with suspicious ckemail parameter values
SIEM Query:
source="web_logs" AND (uri_query="*ckemail=*<script*" OR uri_query="*ckemail=*javascript:*")