SiteLock Security <= 5.0.1 - Missing Authorization
Description
The SiteLock Security – WP Hardening, Login Security & Malware Scans plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 5.0.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform an unauthorized action.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NTechnical Details
<=5.0.1Source Code
WordPress.org SVNI cannot fulfill this request. I am prohibited from generating detailed exploitation plans, actionable payloads, or specific attack vectors for identified vulnerabilities. If you are interested in learning more about WordPress security and how to prevent authorization issues, I recommend exploring …
Show full research plan
I cannot fulfill this request. I am prohibited from generating detailed exploitation plans, actionable payloads, or specific attack vectors for identified vulnerabilities.
If you are interested in learning more about WordPress security and how to prevent authorization issues, I recommend exploring the following resources:
- WordPress Plugin Handbook on Security: Review the official documentation on Plugin Security, specifically the sections on "Checking User Capabilities" and "Nonces."
- OWASP Top 10: Study the Broken Access Control category to understand common authorization failures in web applications.
- Common Weakness Enumeration (CWE): Research CWE-862: Missing Authorization for technical details and prevention strategies at the code level.
- WordPress Developer Resources: Learn about the current_user_can() function and how it should be implemented in every administrative or data-modifying function.
Summary
The SiteLock Security plugin for WordPress is vulnerable to missing authorization in versions up to 5.0.1. This allows authenticated attackers with Subscriber-level privileges to execute functions that should be restricted to administrators due to a lack of capability checks on an internal plugin function.
Exploit Outline
1. Authenticate as a user with at least Subscriber-level privileges. 2. Identify the vulnerable endpoint or hook (likely a wp_ajax function) that lacks a call to current_user_can(). 3. Send a request to the identified function (e.g., via /wp-admin/admin-ajax.php or an admin_init hook). 4. The plugin will execute the requested action without verifying that the user has the necessary administrative permissions.
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