CVE-2026-114180 in Metform Plugin
Summary
by MITRE • 10/23/2026
Missing Authorization vulnerability in Wpmet Metform metform allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Metform: from n/a through 4.3.2.
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Analysis
by VulDB Data Team • 10/23/2026
The identified vulnerability represents a critical failure in access control mechanisms within the WpMet Metform plugin, specifically affecting versions ranging from an unspecified initial release up to version 4.3.2. This flaw is categorized under CWE-862, which denotes Missing Authorization, indicating that the software fails to properly verify whether a user has the necessary permissions to perform specific actions or access certain resources. In practical terms, this means that authenticated users with lower privilege levels can interact with functions and endpoints intended exclusively for administrators or other high-privilege roles. The root cause lies in an incorrectly configured security level where the application logic does not adequately enforce role-based restrictions on server-side operations, allowing bypass of standard permission checks through direct manipulation of HTTP requests or API calls.
From a technical perspective, this vulnerability allows attackers to exploit these misconfigured access controls by sending crafted requests that target administrative functions without possessing the required credentials or roles. Since WordPress plugins often handle sensitive data such as form submissions, user information, and configuration settings, the ability to execute administrative commands can lead to severe consequences including unauthorized modification of site configurations, extraction of database contents, or even remote code execution if combined with other vulnerabilities like file upload flaws. The lack of proper authorization checks means that any authenticated attacker, regardless of their assigned role in WordPress, can potentially escalate privileges and gain full control over the affected website infrastructure.
The operational impact of this vulnerability is significant for organizations relying on Metform to manage customer interactions or internal processes. An adversary exploiting this flaw could alter form settings to redirect submissions to malicious servers, inject harmful scripts into forms leading to cross-site scripting attacks against end-users, or delete critical data stored within the plugin's database tables. Furthermore, because WordPress plugins are widely deployed across millions of websites globally, successful exploitation can lead to widespread compromise if automated scanning tools detect and exploit this weakness at scale. The persistence of such vulnerabilities in popular plugins underscores the importance of rigorous security auditing during development and deployment phases.
To mitigate this risk, immediate action is required by updating the Metform plugin to a version later than 4.3.2 where these authorization checks have been properly implemented and validated. Administrators should also ensure that all WordPress core components are up to date as they often include patches for related security issues. Implementing Web Application Firewalls can provide an additional layer of defense by blocking suspicious request patterns associated with privilege escalation attempts. Regular security audits using static application security testing tools focused on identifying CWE-862 instances will help prevent similar misconfigurations in future releases. Adhering to OWASP guidelines for access control ensures that every endpoint and function verifies user permissions before executing sensitive operations, thereby maintaining the integrity of the application's security posture.