CVE-2024-54355 in WP Mailster Plugin
Summary
by MITRE • 12/16/2024
Cross-Site Request Forgery (CSRF) vulnerability in brandtoss WP Mailster allows Cross Site Request Forgery.This issue affects WP Mailster: from n/a through 1.8.17.0.
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Analysis
by VulDB Data Team • 02/17/2025
The Cross-Site Request Forgery vulnerability identified as CVE-2024-54355 resides within the brandtoss WP Mailster plugin for WordPress, representing a critical security weakness that permits unauthorized actions to be executed on behalf of authenticated users. This vulnerability specifically impacts versions of the WP Mailster plugin ranging from an unspecified starting point through version 1.8.17.0, creating a substantial attack surface for malicious actors seeking to exploit user sessions and manipulate plugin functionality without proper authorization.
The technical flaw manifests through the absence of proper CSRF protection mechanisms within the plugin's request handling processes. When users navigate to malicious websites or click on crafted links while authenticated to a WordPress site running the vulnerable WP Mailster plugin, their browsers automatically submit requests to the target site without their knowledge or consent. This occurs because the plugin fails to implement anti-CSRF tokens or other validation methods that would ensure requests originate from legitimate sources within the same session context. The vulnerability stems from the plugin's failure to verify the authenticity of incoming requests through cryptographic tokens or referer headers that would prevent unauthorized operations from succeeding.
The operational impact of this vulnerability extends beyond simple data manipulation to encompass potential full administrative compromise of affected WordPress installations. An attacker could leverage this CSRF flaw to perform critical actions such as sending mass email campaigns, modifying subscriber lists, altering plugin configurations, or even deleting important data without the target user's knowledge. The attack vector becomes particularly dangerous in environments where administrators frequently access WordPress admin panels, as a single click on a malicious link could result in unauthorized changes to email marketing campaigns or user management settings. This vulnerability directly aligns with CWE-352, which categorizes Cross-Site Request Forgery as a weakness where applications fail to validate that requests originate from legitimate sources.
Mitigation strategies for CVE-2024-54355 should prioritize immediate plugin updates to versions that have addressed the CSRF vulnerability, as this represents the most effective defense mechanism. System administrators must also implement additional protective measures including the enforcement of Content Security Policy headers that restrict cross-origin requests, the implementation of proper CSRF token validation across all plugin endpoints, and the establishment of network-level controls that monitor for suspicious request patterns. Organizations should also consider implementing web application firewalls that can detect and block CSRF attack patterns, while conducting regular security audits to ensure that all WordPress plugins maintain current security standards. The vulnerability's classification under ATT&CK technique T1566.001 further emphasizes the need for comprehensive network monitoring and user education to prevent successful exploitation attempts that could lead to broader system compromise.