CVE-2025-12401 in Label Plugins
Summary
by MITRE • 11/04/2025
The Label Plugins plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.5. This is due to missing or incorrect nonce validation on the label_plugins_options() function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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Analysis
by VulDB Data Team • 06/21/2026
The Label Plugins WordPress plugin contains a critical cross-site request forgery vulnerability affecting all versions through 0.5, representing a fundamental flaw in the plugin's security architecture. This vulnerability stems from the absence of proper nonce validation within the label_plugins_options() function, which serves as the primary interface for modifying plugin settings. The weakness creates a dangerous attack surface where unauthenticated malicious actors can manipulate the plugin's configuration without proper authorization, potentially compromising the entire WordPress installation.
The technical exploitation of this vulnerability occurs through the manipulation of HTTP requests that target the plugin's settings update endpoint. Without proper nonce verification, attackers can craft malicious requests that appear legitimate to the WordPress system, allowing them to modify plugin configurations and potentially inject malicious code. This flaw directly violates the principle of least privilege and proper authentication mechanisms that should protect administrative functions within web applications. The vulnerability aligns with CWE-352, which specifically addresses cross-site request forgery weaknesses in web applications, and represents a classic example of how insufficient input validation and authentication checks can lead to privilege escalation and arbitrary code execution.
The operational impact of this vulnerability extends beyond simple configuration changes, as it provides attackers with a potential foothold for more sophisticated attacks within the WordPress environment. Once an administrator is tricked into clicking a malicious link or visiting an infected webpage, the attacker gains the ability to modify plugin settings that could include data processing configurations, user access controls, or integration parameters with other systems. This creates opportunities for data exfiltration, service disruption, or further compromise of the WordPress installation through the plugin's extended functionality. The vulnerability particularly affects organizations that rely on plugin-based functionality for business-critical operations, as it could lead to unauthorized modifications of important data processing workflows.
Mitigation strategies for this vulnerability require immediate implementation of proper nonce validation throughout the plugin's administrative interfaces. Administrators should upgrade to the latest version of the Label Plugins plugin where the nonce validation has been properly implemented, or alternatively implement additional security measures such as restricting administrative access to trusted IP addresses and implementing web application firewalls to detect and block suspicious requests. The vulnerability demonstrates the importance of following secure coding practices as outlined in the OWASP Top Ten and aligns with ATT&CK technique T1566, which covers phishing attacks that leverage CSRF vulnerabilities to gain administrative access to web applications. Regular security audits of WordPress plugins and maintaining updated software versions remain essential practices for preventing exploitation of similar vulnerabilities in the broader WordPress ecosystem.