CVE-2025-14151
📋 TL;DR
The SlimStat Analytics WordPress plugin has a stored XSS vulnerability that allows unauthenticated attackers to inject malicious scripts into website pages. When users visit compromised pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using SlimStat Analytics version 5.3.2 or earlier are affected.
💻 Affected Systems
- WordPress SlimStat Analytics 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 sites, redirect users to malicious sites, or deploy malware to visitors' browsers.
Likely Case
Attackers inject malicious scripts to steal user session cookies, redirect users to phishing pages, or deface website content.
If Mitigated
With proper input validation and output escaping, the vulnerability would be prevented, and no script execution would occur.
🎯 Exploit Status
The vulnerability requires no authentication and has simple exploitation via crafted AJAX requests to the slimtrack action.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.3.3 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3421814/wp-slimstat/trunk
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find SlimStat Analytics and click 'Update Now'. 4. Verify the plugin version is 5.3.3 or higher.
🔧 Temporary Workarounds
Disable vulnerable AJAX endpoint
allTemporarily disable the slimtrack AJAX action to prevent exploitation
Add to WordPress theme functions.php: remove_action('wp_ajax_slimtrack', 'wp_slimstat::slimtrack'); remove_action('wp_ajax_nopriv_slimtrack', 'wp_slimstat::slimtrack');
🧯 If You Can't Patch
- Disable the SlimStat Analytics plugin completely until patched
- Implement a web application firewall (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for SlimStat Analytics version 5.3.2 or earlierCheck Version:
wp plugin list --name=slimstat --field=versionVerify Fix Applied:
Verify plugin version is 5.3.3 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /wp-admin/admin-ajax.php with 'action=slimtrack' parameter
- Multiple requests with 'outbound_resource' parameter containing script tags or JavaScript
Network Indicators:
- HTTP requests containing malicious script payloads in outbound_resource parameter
- Unusual traffic patterns to admin-ajax.php endpoint
SIEM Query:
source="web_logs" AND uri="/wp-admin/admin-ajax.php" AND parameters CONTAINS "action=slimtrack" AND parameters CONTAINS "outbound_resource" AND (parameters CONTAINS "<script>" OR parameters CONTAINS "javascript:")🔗 References
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.3.2/admin/view/right-now.php#L273
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.3.2/admin/view/wp-slimstat-reports.php#L1341
- https://plugins.trac.wordpress.org/changeset/3421814/wp-slimstat/trunk?contextall=1&old=3401545&old_path=%2Fwp-slimstat%2Ftrunk#file4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6ee675dd-5b43-439f-9717-6c531e9bf066?source=cve
