WordPress Ultimate Member Open Redirect Scanner
Detects 'Open Redirect' vulnerability in WordPress Ultimate Member plugin affects v. <2.1.7.
Short Info
Level
Medium
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
8 days 5 hours
Scan only one
URL
Toolbox
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The WordPress Ultimate Member plugin is widely used by website administrators and developers who need to manage user registrations and memberships efficiently. This plugin is particularly popular among community websites, membership sites, and any web platform that requires user interaction or user-generated content. It offers extensive functionalities like custom registration forms, user role management, and content restriction based on membership levels, making it a key component in maintaining secure member areas of WordPress sites. Being integrated into user-centric sites, the plugin needs ongoing security assessments to ensure user data integrity and site security. This plugin's flexible and robust features contribute significantly to managing user databases securely and efficiently.
The Open Redirect vulnerability detected in the WordPress Ultimate Member plugin involves an improper handling of URLs, which could be exploited by attackers to redirect users to malicious sites. This vulnerability occurs when the "redirect_to" GET parameter is manipulated, allowing an attacker to determine the redirection target. Redirecting victims to unknown, possibly harmful, websites, attackers can deploy phishing attacks, harvest user credentials, or inject malicious scripts.
Technically, the vulnerability lies in the way the plugin processes the "redirect_to" parameter on its registration and login pages. The parameter is insufficiently sanitized or validated, allowing attackers to insert arbitrary URLs. By crafting special links containing the malicious parameter values, attackers can trick users into clicking them, thinking they lead to legitimate sites. This oversight compromises safe navigation and could expose users to various cybersecurity threats.
If exploited, an Open Redirect vulnerability can result in severe consequences: attackers can redirect traffic to harmful environments potentially leading to data theft, or compromised confidentiality as users unknowingly interact with hostile sites. Users’ unauthorized data manipulation risks increase dramatically as intruders execute phishing campaigns in the background.
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