CVE-2025-58595: All In One Login Auth Bypass Vulnerability

CVE-2025-58595 Overview

CVE-2025-58595 is an Authentication Bypass by Spoofing vulnerability affecting the All In One Login (change-wp-admin-login) WordPress plugin developed by Saad Iqbal. This vulnerability allows attackers to perform Identity Spoofing, potentially gaining unauthorized access to WordPress administrative functions without valid credentials. The vulnerability impacts all versions of the plugin through version 2.0.8.

Critical Impact

This authentication bypass vulnerability enables attackers to spoof identities and potentially gain unauthorized administrative access to WordPress sites using the affected plugin, compromising site integrity and confidentiality.

Affected Products

• All In One Login (change-wp-admin-login) WordPress Plugin versions through 2.0.8
• WordPress installations using the vulnerable plugin versions

Discovery Timeline

• November 6, 2025 - CVE-2025-58595 published to NVD
• January 20, 2026 - Last updated in NVD database

Technical Details for CVE-2025-58595

Vulnerability Analysis

This vulnerability is classified under CWE-290 (Authentication Bypass by Spoofing), which occurs when an application improperly implements authentication mechanisms, allowing an attacker to impersonate a legitimate user or system. The All In One Login plugin, designed to change and secure the default WordPress admin login URL, contains a flaw in its authentication validation logic.

The vulnerability can be exploited remotely over the network without requiring any privileges or user interaction. Successful exploitation results in high impact to both confidentiality and integrity of the affected WordPress installation, though availability is not affected. Attackers leveraging this vulnerability could bypass the plugin's security controls designed to protect the WordPress login page.

Root Cause

The root cause stems from insufficient validation in the authentication spoofing protection mechanisms within the All In One Login plugin. The plugin fails to properly verify the authenticity of identity claims during the authentication process, allowing attackers to forge or manipulate identity information to bypass security controls.

The plugin's attempt to hide and secure the WordPress admin login URL (wp-admin and wp-login.php) can be circumvented through identity spoofing techniques, effectively negating the security benefits the plugin was designed to provide.

Attack Vector

The attack vector is network-based, meaning attackers can exploit this vulnerability remotely without requiring local access to the target system. The attack complexity is low, requiring no privileges or user interaction, making this vulnerability particularly dangerous for public-facing WordPress installations.

An attacker can craft malicious requests that spoof legitimate user identities, bypassing the authentication checks implemented by the plugin. This allows unauthorized access to administrative functions that should be protected by the custom login URL mechanism.

For detailed technical analysis and exploitation vectors, refer to the Patchstack WordPress Vulnerability Analysis.

Detection Methods for CVE-2025-58595

Indicators of Compromise

• Unexpected successful authentication attempts to WordPress admin areas without corresponding valid login activity
• Authentication log entries showing access from unusual IP addresses or geolocations
• Unexplained administrative changes in WordPress settings, users, or content
• Access to wp-admin or wp-login.php bypassing the configured custom login URL

Detection Strategies

• Monitor WordPress authentication logs for anomalous login patterns or identity spoofing indicators
• Implement Web Application Firewall (WAF) rules to detect and block authentication bypass attempts
• Enable detailed logging for all WordPress admin access attempts and review regularly
• Deploy endpoint detection solutions capable of identifying authentication bypass exploitation attempts

Monitoring Recommendations

• Configure real-time alerting for successful admin logins from new or unrecognized sources
• Implement rate limiting and anomaly detection on WordPress login endpoints
• Monitor file integrity of WordPress core files, plugin files, and configuration files
• Review web server access logs for patterns indicating authentication bypass attempts

How to Mitigate CVE-2025-58595

Immediate Actions Required

• Update the All In One Login plugin to a patched version if available
• If no patch is available, consider temporarily disabling the plugin until a fix is released
• Implement additional authentication controls such as two-factor authentication (2FA)
• Review WordPress user accounts for any unauthorized additions or privilege escalations
• Audit recent administrative activities for signs of unauthorized access

Patch Information

Administrators should monitor the WordPress plugin repository and the Patchstack security advisory for updates from the plugin developer. Upgrade to a version newer than 2.0.8 once a security patch is released by Saad Iqbal.

Workarounds

• Implement server-level IP whitelisting to restrict access to WordPress admin areas
• Deploy a Web Application Firewall (WAF) with rules to detect identity spoofing attacks
• Use alternative security plugins that provide similar functionality until a patch is available
• Enable WordPress built-in application passwords and enforce strong authentication policies

# Apache .htaccess configuration to restrict wp-admin access by IP
<Directory /var/www/html/wp-admin>
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>