CVE-2025-22689
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Forex Calculators WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. The vulnerability affects all versions up to 1.3.6 of the plugin, potentially compromising any WordPress site using this plugin.
💻 Affected Systems
- WordPress Forex Calculators 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 admin accounts, deface websites, redirect users to malicious sites, or install backdoors for persistent access.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts and sensitive data.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before execution, preventing successful exploitation.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited and weaponized due to their persistence and impact.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 1.3.6
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Forex Calculators' plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove the plugin.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Forex Calculators plugin until patched
wp plugin deactivate fx-calculators
Implement Content Security Policy
allAdd CSP headers to restrict script execution 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
- Implement web application firewall (WAF) rules to block XSS payloads
- Disable the Forex Calculators plugin entirely and use alternative calculators
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Forex Calculators version 1.3.6 or earlierCheck Version:
wp plugin get fx-calculators --field=versionVerify Fix Applied:
Verify plugin version is higher than 1.3.6 in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints containing script tags or JavaScript
- Multiple failed XSS attempts in web server logs
Network Indicators:
- Outbound connections to suspicious domains from your WordPress site
- Unexpected JavaScript execution in browser developer tools
SIEM Query:
source="web_server_logs" AND ("fx-calculators" OR "forex-calculators") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")