CVE-2024-9354
📋 TL;DR
The Estatik Mortgage Calculator WordPress plugin contains a reflected cross-site scripting vulnerability in the 'color' 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 this plugin up to version 2.0.11 are affected.
💻 Affected Systems
- Estatik Mortgage Calculator 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 administrative access to WordPress, install backdoors, deface websites, or compromise user data.
Likely Case
Attackers steal user session cookies, redirect users to phishing sites, or perform limited actions within the user's current session context.
If Mitigated
With proper web application firewalls and security headers, exploitation attempts are blocked, limiting impact to failed attacks.
🎯 Exploit Status
Exploitation requires user interaction (clicking malicious link) but is trivial to craft and execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.12 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Estatik Mortgage Calculator' and click 'Update Now'. 4. Verify version is 2.0.12 or higher.
🔧 Temporary Workarounds
Web Application Firewall Rule
allBlock malicious requests containing XSS payloads in the 'color' parameter
Add WAF rule: Block requests where parameter 'color' contains '<script', 'javascript:', or other XSS indicators
Content Security Policy
allImplement CSP headers to restrict script execution sources
Add header: Content-Security-Policy: script-src 'self'
🧯 If You Can't Patch
- Disable or remove the Estatik Mortgage Calculator plugin entirely
- Implement strict input validation and output encoding at the application level
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for Estatik Mortgage Calculator version 2.0.11 or lowerCheck Version:
wp plugin list --name='estatik-mortgage-calculator' --field=versionVerify Fix Applied:
Confirm plugin version is 2.0.12 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- HTTP requests with 'color' parameter containing script tags or JavaScript code
- Unusual GET requests to mortgage calculator pages with encoded payloads
Network Indicators:
- Outbound connections to suspicious domains following mortgage calculator page visits
- Multiple failed XSS attempts in web server logs
SIEM Query:
source="web_server" AND (uri="*mortgage*" OR uri="*calculator*") AND (param="color" AND value="*<script*" OR value="*javascript:*")🔗 References
- https://plugins.trac.wordpress.org/browser/estatik-mortgage-calculator/trunk/public/images/info.php
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3199224%40estatik-mortgage-calculator&new=3199224%40estatik-mortgage-calculator&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4b955a0f-d064-436f-8648-0e84fac752d2?source=cve
