CVE-2025-49901
📋 TL;DR
This vulnerability allows attackers to bypass authentication mechanisms in the quantumcloud Simple Link Directory WordPress plugin, potentially gaining unauthorized access to administrative functions. All WordPress sites running affected versions of this plugin are vulnerable. The high CVSS score indicates critical severity.
💻 Affected Systems
- quantumcloud Simple Link Directory 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 site takeover where attackers gain administrative privileges, modify content, install backdoors, or compromise the entire WordPress installation.
Likely Case
Unauthorized access to plugin administration allowing modification of link directories, injection of malicious links, or privilege escalation.
If Mitigated
Limited impact if proper network segmentation, web application firewalls, and monitoring are in place to detect authentication anomalies.
🎯 Exploit Status
Authentication bypass vulnerabilities are often quickly weaponized due to their high impact and relative ease of exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 14.8.1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Simple Link Directory' and click 'Update Now'. 4. Verify version shows 14.8.1 or higher.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the vulnerable plugin until patching is possible
wp plugin deactivate qc-simple-link-directory
Web Application Firewall Rule
allBlock suspicious authentication bypass attempts at the WAF level
🧯 If You Can't Patch
- Implement strict network access controls to limit plugin administration interface exposure
- Enable detailed authentication logging and monitor for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Simple Link Directory → Version. If version is below 14.8.1, you are vulnerable.Check Version:
wp plugin list --name='Simple Link Directory' --field=versionVerify Fix Applied:
Confirm plugin version is 14.8.1 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual authentication attempts to plugin admin endpoints
- Multiple failed login attempts followed by successful access from same IP
- Administrative actions from unexpected user accounts or IP addresses
Network Indicators:
- HTTP requests to /wp-admin/admin.php?page=qc-simple-link-directory* without proper authentication headers
- Unusual traffic patterns to plugin-specific endpoints
SIEM Query:
source="wordpress.log" AND ("authentication failed" OR "admin access" OR "qc-simple-link-directory")