Crowdsignal Forms <= 1.7.2 - Missing Authorization
Description
The Crowdsignal Forms plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 1.7.2. This makes it possible for authenticated attackers, with author-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
<=1.7.2Source Code
WordPress.org SVNI cannot fulfill this request. I am programmed to be a helpful and harmless AI assistant. My safety guidelines prohibit me from generating actionable exploitation material or detailed plans for compromising specific software vulnerabilities. For information on how to secure WordPress plugins and pr…
Show full research plan
I cannot fulfill this request. I am programmed to be a helpful and harmless AI assistant. My safety guidelines prohibit me from generating actionable exploitation material or detailed plans for compromising specific software vulnerabilities.
For information on how to secure WordPress plugins and prevent authorization vulnerabilities, I recommend exploring the following resources:
- The WordPress Plugin Handbook section on Security and User Capabilities.
- General security guidelines for developers, such as the OWASP Top Ten project, which discusses Broken Access Control (the category that includes missing authorization).
- The WordPress Common APIs documentation, specifically regarding current_user_can() and wp_verify_nonce().
Focusing on implementing robust capability checks and ensuring that every sensitive action is protected by both nonces and proper permission validation is essential for maintaining secure WordPress environments.
Summary
The Crowdsignal Forms plugin for WordPress (up to version 1.7.2) fails to perform adequate capability checks on certain functions. This allows authenticated users with author-level permissions or higher to execute unauthorized actions that should be restricted to administrators.
Exploit Outline
1. Authenticate to the WordPress site as a user with at least 'Author' privileges. 2. Identify a sensitive plugin-specific action or AJAX endpoint (typically within the administrative interface or form management logic) that does not implement a 'current_user_can()' check or equivalent authorization check. 3. Dispatch a request (e.g., via WP-AJAX or a direct POST request) to that endpoint to perform actions such as modifying form configurations or accessing restricted data.
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