CVE-2025-27341
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Reactive Mortgage Calculator WordPress plugin allows attackers to inject malicious scripts that execute when other users view affected pages. All WordPress sites using vulnerable versions of this plugin are affected. The vulnerability enables session hijacking, defacement, and credential theft.
💻 Affected Systems
- Reactive 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 credentials, take over the WordPress site, install backdoors, and compromise all user data.
Likely Case
Attackers hijack user sessions, redirect visitors to malicious sites, or deface mortgage calculator pages with malicious content.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before execution, preventing exploitation.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited. The patchstack reference provides technical details that could be used to create exploits.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Reactive Mortgage Calculator'. 4. Click 'Update Now' if update available. 5. If no update, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the vulnerable plugin until patched version is available.
wp plugin deactivate reactive-mortgage-calculator
Apply WAF Rules
allConfigure web application firewall to block XSS payloads targeting the mortgage calculator endpoints.
🧯 If You Can't Patch
- Remove the Reactive Mortgage Calculator plugin completely from your WordPress installation
- Implement strict Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'Reactive Mortgage Calculator' version 1.1 or earlier.Check Version:
wp plugin list --name=reactive-mortgage-calculator --field=versionVerify Fix Applied:
Verify plugin version is higher than 1.1 or plugin is completely removed from the site.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to mortgage calculator endpoints with script tags
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing <script> tags to /wp-content/plugins/reactive-mortgage-calculator/
SIEM Query:
source="web_server" AND (uri="*reactive-mortgage-calculator*" AND (body="*<script>*" OR body="*javascript:*"))