CVE-2025-15030: User Profile Builder Auth Bypass Flaw

CVE-2025-15030 Overview

CVE-2025-15030 is a critical authentication bypass vulnerability affecting the User Profile Builder WordPress plugin before version 3.15.2. The vulnerability stems from an improper password reset process that allows unauthenticated attackers to reset the password of any user account, including administrators, by simply knowing their username. This flaw enables complete account takeover without any prior authentication.

Critical Impact

Unauthenticated attackers can reset administrator passwords and gain full control of WordPress sites using vulnerable versions of the User Profile Builder plugin.

Affected Products

• User Profile Builder WordPress plugin versions prior to 3.15.2
• WordPress sites with User Profile Builder installed and password reset functionality enabled

Discovery Timeline

• 2026-02-02 - CVE-2025-15030 published to NVD
• 2026-02-03 - Last updated in NVD database

Technical Details for CVE-2025-15030

Vulnerability Analysis

This vulnerability is classified under CWE-269 (Improper Privilege Management). The User Profile Builder plugin implements a flawed password reset mechanism that fails to properly validate password reset requests. The authentication bypass allows attackers to circumvent the normal password reset workflow by making a small number of unauthenticated HTTP requests.

The core issue lies in the plugin's failure to implement proper verification tokens, time-limited reset links, or adequate rate limiting on the password reset endpoint. This architectural weakness means that an attacker who knows or can enumerate valid usernames can exploit the password reset function to set arbitrary passwords for any user account on the affected WordPress installation.

Root Cause

The root cause of CVE-2025-15030 is an improperly implemented password reset process in the User Profile Builder plugin. The plugin lacks adequate authentication controls and verification mechanisms during the password reset workflow. Specifically, the reset process does not properly validate that the person requesting the password reset is the legitimate account owner, nor does it implement sufficient anti-automation measures to prevent abuse.

Attack Vector

The attack is network-based and requires no authentication or user interaction. An attacker can exploit this vulnerability remotely by:

1. Identifying or enumerating valid usernames on the target WordPress site
2. Initiating password reset requests through the vulnerable plugin's functionality
3. Bypassing the intended verification steps due to the flawed implementation
4. Setting a new password for the targeted account, including administrator accounts
5. Logging in with the newly set credentials to gain full access

The vulnerability is particularly dangerous because WordPress installations commonly have predictable administrator usernames such as "admin" or publicly visible author names.

Detection Methods for CVE-2025-15030

Indicators of Compromise

• Unexpected password reset emails received by users who did not initiate them
• Multiple password reset requests in web server logs targeting different usernames
• Unauthorized login events for administrator or privileged accounts
• New user accounts created with elevated privileges after a compromise

Detection Strategies

• Monitor WordPress logs for unusual password reset activity, particularly multiple requests from the same IP address
• Implement Web Application Firewall (WAF) rules to detect and block suspicious password reset patterns
• Review authentication logs for successful logins from unfamiliar IP addresses or geographic locations
• Enable WordPress security plugins that alert on administrative actions and configuration changes

Monitoring Recommendations

• Configure alerts for password changes on administrator and privileged accounts
• Set up rate limiting alerts for password reset endpoints
• Monitor for enumeration attempts against user accounts via login and password reset pages
• Implement file integrity monitoring to detect unauthorized modifications after potential compromise

How to Mitigate CVE-2025-15030

Immediate Actions Required

• Update the User Profile Builder plugin to version 3.15.2 or later immediately
• Review recent password reset activity and user account changes for signs of exploitation
• Force password resets for all administrator accounts as a precautionary measure
• Temporarily disable the password reset functionality if the update cannot be applied immediately

Patch Information

The vulnerability has been addressed in User Profile Builder version 3.15.2. Administrators should update to this version or later through the WordPress admin dashboard or by downloading the latest version directly from the plugin repository. For detailed information about the vulnerability and its resolution, refer to the WPScan Vulnerability Report.

Workarounds

• Disable the User Profile Builder plugin's password reset functionality until patching is complete
• Implement additional authentication factors for administrator accounts
• Use security plugins to add CAPTCHA or rate limiting to password reset forms
• Restrict access to WordPress administrative functions by IP address where feasible
• Consider temporarily disabling the plugin entirely on critical sites until the update can be applied