CVE-2024-50475 in Signup Page Plugin
Summary
by MITRE • 10/29/2024
Missing Authorization vulnerability in Scott Gamon Signup Page signup-page allows Privilege Escalation.This issue affects Signup Page: from n/a through <= 1.0.
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Analysis
by VulDB Data Team • 04/07/2026
The vulnerability identified as CVE-2024-50475 represents a critical authorization flaw within the Scott Gamon Signup Page plugin, specifically impacting versions prior to 1.0. This missing authorization check creates a pathway for unauthorized users to escalate their privileges within the affected system. The vulnerability stems from insufficient validation mechanisms that should have verified user permissions before granting access to administrative functions or sensitive operations. According to CWE-862, this weakness falls under the category of insufficient authorization, where the system fails to properly verify that an actor is authorized to perform a requested operation. The issue manifests in the signup page functionality where legitimate users may be able to perform actions typically restricted to administrators or privileged accounts.
The technical implementation of this vulnerability allows attackers to exploit the absence of proper access controls during the signup process, potentially enabling them to assume elevated roles within the application. This flaw operates at the application layer where authentication and authorization checks should have been enforced but were omitted or misconfigured. The vulnerability's impact extends beyond simple privilege escalation as it can potentially allow attackers to modify user permissions, access restricted data, or perform administrative functions without proper credentials. The ATT&CK framework categorizes this type of weakness under privilege escalation techniques where adversaries leverage insufficient authorization controls to gain higher-level system access. The lack of authorization checks in the signup page functionality creates a persistent risk that remains active until the underlying code is patched or the authorization mechanisms are properly implemented.
From an operational standpoint, this vulnerability presents significant risks to organizations using the affected plugin, as it can lead to unauthorized access to sensitive user data, modification of system configurations, or complete compromise of the signup functionality. The impact is particularly severe because signup pages typically handle sensitive user information and may be accessible to unauthenticated users, making this a prime target for exploitation. Security professionals should consider this vulnerability as part of a broader attack surface assessment, particularly in environments where multiple plugins or applications interact with user registration systems. Organizations may face regulatory compliance issues if user data is compromised through this vulnerability, as it violates fundamental security principles of least privilege and proper access control enforcement. The vulnerability also demonstrates the importance of implementing robust authorization controls even in seemingly simple components like signup pages, where attackers can often find unexpected entry points. Mitigation strategies should include immediate patching of the affected plugin, implementation of proper access controls, and comprehensive security testing of all user-facing interfaces to prevent similar authorization bypasses.
The root cause of this vulnerability lies in inadequate security testing and code review processes that failed to identify the missing authorization checks during development. This type of flaw often occurs when developers assume that certain functionalities are inherently secure or when authorization requirements are not properly documented and enforced. The vulnerability highlights the need for security-by-design principles where authorization controls are systematically implemented and tested as part of the development lifecycle. Organizations should establish security requirements that mandate proper authorization verification for all user interactions, particularly in components that handle user registration or account management functions. The remediation process should involve not only patching the specific vulnerability but also conducting thorough security audits of similar components to identify and address other potential authorization gaps. This vulnerability serves as a reminder that even minor functionality can represent significant security risks when proper access controls are not implemented, emphasizing the critical importance of comprehensive security testing and validation of all application components.