CVE-2025-27339 in Minimum Password Strength Plugin
Summary
by MITRE • 02/24/2025
Cross-Site Request Forgery (CSRF) vulnerability in Will Anderson Minimum Password Strength allows Cross Site Request Forgery. This issue affects Minimum Password Strength: from n/a through 1.2.0.
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Analysis
by VulDB Data Team • 02/24/2025
The CVE-2025-27339 vulnerability represents a critical cross-site request forgery flaw within the Will Anderson Minimum Password Strength WordPress plugin, a security tool designed to enforce password complexity requirements for user accounts. This vulnerability exists in plugin versions ranging from the initial release through version 1.2.0, creating a persistent security risk for WordPress installations that rely on this particular plugin for password policy enforcement. The issue stems from the plugin's failure to implement proper CSRF protection mechanisms, leaving WordPress administrators and users susceptible to unauthorized actions being performed on their behalf.
The technical implementation of this vulnerability occurs through the plugin's handling of administrative requests without adequate validation of request origins or the presence of anti-CSRF tokens. When an authenticated user visits a malicious website or clicks on a crafted link, the attacker can potentially manipulate the plugin's password strength enforcement features to perform unauthorized actions such as modifying password policies, resetting user passwords, or altering security configurations. This flaw operates at the application layer and specifically targets the plugin's administrative interfaces where password strength requirements are configured and managed.
The operational impact of this vulnerability extends beyond simple privilege escalation as it can enable attackers to compromise the entire WordPress authentication system. An attacker could leverage this CSRF vulnerability to weaken password policies, potentially allowing for brute force attacks against user accounts, or to completely disable password strength requirements, creating an environment where weak passwords can be set without restriction. This vulnerability particularly affects WordPress sites where the Minimum Password Strength plugin is actively used for security policy enforcement, making it a significant concern for organizations relying on this specific plugin for their security infrastructure.
Organizations should immediately update to the latest version of the Minimum Password Strength plugin once available, as this represents the most direct mitigation approach for addressing the CSRF implementation flaw. Additionally, administrators should implement additional layers of security including the use of security headers, proper input validation, and regular security audits of installed plugins. The vulnerability aligns with CWE-352, which specifically addresses cross-site request forgery weaknesses in web applications, and falls under ATT&CK technique T1078.004 for valid accounts and T1566 for spearphishing attacks that could exploit this weakness. Network-based mitigations such as web application firewalls and proper security configuration of WordPress installations can also help reduce the attack surface while waiting for official patches to be released and deployed.