CVE-2024-34371 in Login with Phone Number Plugin
Summary
by MITRE • 05/06/2024
Missing Authorization vulnerability in Hamid Alinia Login with phone number login-with-phone-number.This issue affects Login with phone number: from n/a through <= 1.7.18.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 04/02/2026
The CVE-2024-34371 vulnerability represents a critical missing authorization flaw within the Login with phone number plugin for WordPress, specifically impacting versions ranging from the initial release through version 1.7.18. This vulnerability resides in the authentication mechanism that handles phone number based user logins, creating a significant security gap that could allow unauthorized access to user accounts and system resources. The flaw fundamentally undermines the intended authorization controls that should verify user credentials and permissions before granting access to protected functionalities. Such a vulnerability is particularly dangerous in web applications where user authentication and session management are critical components for maintaining system integrity and user privacy.
The technical implementation of this missing authorization issue stems from inadequate validation of user permissions and authentication states within the phone number login workflow. When users attempt to authenticate using their phone numbers, the system fails to properly verify whether the requesting user has legitimate authorization to access the requested resources or perform specific actions. This gap in authorization checks creates a pathway for malicious actors to exploit the login mechanism and potentially gain unauthorized access to user accounts, sensitive data, or administrative functions within the WordPress environment. The vulnerability likely manifests in scenarios where the plugin does not properly validate session tokens, user roles, or access levels during the authentication process, allowing attackers to bypass standard authorization procedures.
The operational impact of this vulnerability extends beyond simple unauthorized access, potentially enabling attackers to perform a range of malicious activities including account takeovers, data breaches, and privilege escalation within the affected WordPress installation. An attacker could exploit this weakness to impersonate legitimate users, access restricted content, modify user profiles, or even gain administrative privileges if the plugin's authorization checks are insufficiently implemented. The vulnerability affects not only individual user accounts but also the overall security posture of the WordPress site, as it represents a fundamental flaw in the authentication infrastructure that could serve as a stepping stone for more extensive attacks. This type of authorization bypass is particularly concerning because it can be exploited without requiring advanced technical skills or specific prerequisites beyond understanding the basic authentication flow.
Security mitigations for CVE-2024-34371 should prioritize immediate plugin updates to versions that address the authorization flaw, as developers typically release patches to resolve such vulnerabilities. Organizations should implement comprehensive monitoring of authentication logs to detect suspicious login patterns or unauthorized access attempts that might indicate exploitation of this vulnerability. Network segmentation and additional authentication layers, such as multi-factor authentication, can provide defense-in-depth measures to reduce the impact if the vulnerability is exploited. The vulnerability aligns with CWE-863, which describes "Incorrect Authorization" in software systems, and represents a clear violation of the principle of least privilege that should govern all access control mechanisms. From an ATT&CK framework perspective, this vulnerability maps to techniques involving credential access and privilege escalation, potentially enabling adversaries to move laterally within the affected systems and persist in compromised environments. Regular security audits and vulnerability assessments should be conducted to identify similar authorization gaps in other plugins and themes, ensuring that the entire WordPress ecosystem maintains robust security controls. The affected plugin's authorization implementation should be reviewed to ensure proper validation of user credentials and appropriate access controls are enforced throughout all authentication flows.