CVE-2025-47555
📋 TL;DR
This CVE describes an Insecure Direct Object Reference (IDOR) vulnerability in Tutor LMS WordPress plugin that allows attackers to bypass authorization by manipulating user-controlled keys. Attackers can access or modify data they shouldn't have permission to view. This affects all Tutor LMS installations up to version 3.9.4.
💻 Affected Systems
- Themeum Tutor LMS 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
Complete compromise of sensitive student data, grade manipulation, unauthorized course access, and potential privilege escalation to administrative functions.
Likely Case
Unauthorized access to student records, course materials, and user data through IDOR attacks on exposed endpoints.
If Mitigated
Limited data exposure if proper access controls and input validation are implemented, with only minor information disclosure.
🎯 Exploit Status
Exploitation requires at least low-privilege user access. IDOR vulnerabilities are commonly exploited through parameter manipulation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.9.5 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Tutor LMS and click 'Update Now'. 4. Verify update to version 3.9.5 or higher.
🔧 Temporary Workarounds
Temporary Access Restriction
allRestrict access to Tutor LMS endpoints via web application firewall or .htaccess rules
# Example .htaccess rule to restrict access
RewriteCond %{REQUEST_URI} ^/wp-content/plugins/tutor/.*$
RewriteRule .* - [F,L]
🧯 If You Can't Patch
- Implement strict access control lists (ACLs) at the web server level to restrict unauthorized access to Tutor LMS endpoints
- Deploy a web application firewall (WAF) with IDOR protection rules and monitor for suspicious parameter manipulation attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Tutor LMS version. If version is 3.9.4 or lower, system is vulnerable.Check Version:
wp plugin list --name=tutor --field=versionVerify Fix Applied:
Verify Tutor LMS version is 3.9.5 or higher in WordPress admin panel and test authorization controls on user-specific endpoints.📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to Tutor LMS endpoints, multiple failed authorization attempts followed by successful access, parameter manipulation in URLs
Network Indicators:
- HTTP requests with manipulated ID parameters to /wp-content/plugins/tutor/ endpoints, unusual data access patterns from low-privilege users
SIEM Query:
source="web_logs" AND uri="/wp-content/plugins/tutor/*" AND (status=200 OR status=403) | stats count by src_ip, uri, user_agent