CVE-2024-34378

8.6 HIGH

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the LeadConnector WordPress plugin that allows unauthorized access to API endpoints. Attackers can exploit this to perform actions without proper authentication, affecting all WordPress sites using vulnerable versions of the plugin.

💻 Affected Systems

Products:
  • WordPress LeadConnector plugin
Versions: n/a through 1.7
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with vulnerable plugin versions installed and activated.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of the WordPress site including data theft, content manipulation, and potential privilege escalation to administrative access.

🟠

Likely Case

Unauthorized data access and manipulation through the plugin's API, potentially exposing sensitive lead information and allowing data modification.

🟢

If Mitigated

Limited impact with proper network segmentation and API monitoring, but still presents authentication bypass risk.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Missing authorization vulnerabilities typically require minimal technical skill to exploit once the vulnerable endpoints are identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.8 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/leadconnector/wordpress-leadconnector-plugin-1-7-api-broken-access-control-vulnerability

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find LeadConnector plugin
4. Click 'Update Now' if available
5. If no update available, deactivate and remove plugin
6. Install latest version from WordPress repository

🔧 Temporary Workarounds

Disable LeadConnector Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate leadconnector

Restrict API Access

all

Use web application firewall to block access to LeadConnector API endpoints

🧯 If You Can't Patch

  • Disable the LeadConnector plugin immediately
  • Implement strict network access controls to limit API endpoint exposure

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins for LeadConnector version

Check Version:

wp plugin get leadconnector --field=version

Verify Fix Applied:

Verify plugin version is 1.8 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized API requests to /wp-json/leadconnector/ endpoints
  • Multiple failed authentication attempts followed by successful API calls

Network Indicators:

  • Unusual traffic patterns to plugin API endpoints
  • API requests without proper authentication headers

SIEM Query:

source="wordpress" AND (uri_path="/wp-json/leadconnector/*" OR plugin="leadconnector") AND (response_code=200 OR response_code=201) AND NOT (user_agent="wordpress-admin" OR authenticated_user=*)

🔗 References

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