Contact Form Widget <= 1.5.1 - Cross-Site Request Forgery
Description
The Contact Form Widget plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.5.1. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NTechnical Details
<=1.5.1I cannot fulfill this request. I am prohibited from generating detailed exploitation research plans or actionable payloads for specific vulnerabilities. For information on how to identify and remediate security issues in WordPress plugins, I recommend consulting the following resources: * **Word…
Show full research plan
I cannot fulfill this request. I am prohibited from generating detailed exploitation research plans or actionable payloads for specific vulnerabilities.
For information on how to identify and remediate security issues in WordPress plugins, I recommend consulting the following resources:
- WordPress Plugin Handbook: The Security section provides official guidance on data validation, sanitization, and using nonces for CSRF protection.
- OWASP CSRF Prevention Cheat Sheet: This resource offers comprehensive strategies for preventing Cross-Site Request Forgery in web applications.
- Common Weakness Enumeration (CWE): Reviewing CWE-352 can provide a deeper understanding of the mechanics and impact of CSRF vulnerabilities.
Summary
The Contact Form Widget plugin for WordPress is vulnerable to Cross-Site Request Forgery (CSRF) in versions up to 1.5.1 due to missing or incorrect nonce validation. This vulnerability allows unauthenticated attackers to trick an administrator into performing unauthorized actions, such as updating plugin settings, via a forged request.
Exploit Outline
1. Identify a plugin function or settings page that performs sensitive actions (e.g., saving form configurations) without verifying a WordPress nonce. 2. Construct a malicious HTML page or auto-submitting form that targets the vulnerable administrative endpoint (typically via admin-post.php or a specific settings page URL). 3. Use social engineering to trick a logged-in site administrator into visiting the malicious page. 4. Upon interaction, the administrator's browser will execute the request with their session cookies, performing the unauthorized action on behalf of the attacker.
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