CVE-2025-23861
📋 TL;DR
This CSRF vulnerability in the Debt Calculator WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. Attackers could exploit this to inject malicious scripts that execute when other users visit affected pages. All WordPress sites using Debt Calculator version 1.0.1 or earlier are affected.
💻 Affected Systems
- Katz Web Services, Inc. Debt 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 could chain CSRF with stored XSS to compromise administrator accounts, deface websites, or steal sensitive user data through persistent malicious scripts.
Likely Case
Attackers create fake forms or links that trick administrators into changing plugin settings or injecting malicious content that affects site visitors.
If Mitigated
With proper CSRF tokens and same-origin policies, unauthorized requests would be rejected, preventing exploitation.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated administrators into clicking malicious links or visiting compromised pages.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.0.1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Debt Calculator plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove plugin immediately.
🔧 Temporary Workarounds
Implement CSRF Protection Headers
allAdd Content-Security-Policy and SameSite cookie attributes to reduce CSRF risk
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'"
Set PHP session cookie: session_set_cookie_params(['samesite' => 'Strict'])
🧯 If You Can't Patch
- Disable or remove the Debt Calculator plugin immediately
- Implement web application firewall rules to block suspicious POST requests to plugin endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Debt Calculator version 1.0.1 or earlierCheck Version:
wp plugin list --name=debt-calculator --field=versionVerify Fix Applied:
Verify plugin version is higher than 1.0.1 or plugin is completely removed📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /wp-admin/admin-ajax.php with debt-calculator actions
- Multiple failed CSRF token validations
Network Indicators:
- Unexpected cross-origin requests to plugin endpoints
- Suspicious referer headers in POST requests
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" AND post_data CONTAINS "debt-calculator")