CVE-2024-47354 in Simple Membership After Login Redirection Plugin
Summary
by MITRE • 10/10/2024
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in wp.insider Simple Membership After Login Redirection simple-membership-after-login-redirection.This issue affects Simple Membership After Login Redirection: from n/a through <= 1.6.
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Analysis
by VulDB Data Team • 04/05/2026
The CVE-2024-47354 vulnerability represents a critical open redirect flaw within the Simple Membership After Login Redirection plugin for WordPress, specifically impacting versions ranging from the initial release through version 1.6. This vulnerability falls under the CWE-601 category, which classifies open redirect vulnerabilities as a serious security concern that allows attackers to redirect users to malicious websites. The flaw exists in the plugin's handling of URL redirection logic following user authentication, creating a pathway for malicious actors to exploit the system's trust in legitimate redirect mechanisms.
The technical implementation of this vulnerability stems from insufficient validation of redirect URLs within the plugin's authentication flow. When users log into a WordPress site utilizing this plugin, the system processes a redirect parameter that should ideally be validated against a whitelist of approved domains. However, the current implementation fails to properly sanitize or validate the destination URL, allowing attackers to craft malicious URLs that appear to originate from trusted sources. This weakness enables attackers to construct URLs with crafted redirect parameters that point to phishing sites, malware distribution platforms, or other malicious destinations while maintaining the appearance of legitimacy.
The operational impact of this vulnerability extends beyond simple user inconvenience, creating significant risks for both individual users and organizations managing WordPress installations. Attackers can leverage this flaw to execute sophisticated social engineering campaigns by directing authenticated users to malicious sites that mimic legitimate services, potentially capturing credentials or installing malware. The vulnerability is particularly dangerous because it operates within the authentication flow, meaning that users who are already logged into a legitimate site are more likely to trust the redirect, reducing their security awareness and increasing the likelihood of successful attacks. This opens the door for credential theft, session hijacking, and other advanced persistent threats that could compromise entire user accounts and potentially lead to broader system infiltration.
Organizations should implement immediate mitigations including updating to the latest version of the Simple Membership After Login Redirection plugin where available, as well as implementing additional security controls such as web application firewalls that can detect and block suspicious redirect patterns. Network administrators should also consider implementing domain-based access controls and monitoring for unusual redirect behaviors in their logs. From a defensive perspective, this vulnerability aligns with tactics described in the MITRE ATT&CK framework under the T1566 category, which covers social engineering techniques, specifically the use of malicious links to gain initial access. The remediation process should include thorough review of all plugins for similar vulnerabilities and implementation of proper input validation techniques that align with secure coding practices recommended by OWASP and other security organizations.