CVE-2023-23830 in ProfilePress Membership Team Plugin
Summary
by MITRE • 05/03/2023
Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in ProfilePress Membership Team ProfilePress plugin <= 4.5.4 versions.
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Analysis
by VulDB Data Team • 05/27/2023
The CVE-2023-23830 vulnerability represents a critical unauthenticated reflected cross-site scripting flaw discovered in the ProfilePress Membership Team plugin version 4.5.4 and earlier. This vulnerability resides within the plugin's handling of user input parameters, specifically affecting the team profile functionality where user-supplied data is not properly sanitized before being reflected back to the browser. The issue stems from the plugin's failure to implement adequate input validation and output encoding mechanisms when processing HTTP request parameters that are subsequently displayed on web pages. This allows attackers to inject malicious scripts that execute in the context of a victim's browser session, potentially leading to unauthorized actions being performed on behalf of the user.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing script code within parameters that are processed by the vulnerable plugin. When an unsuspecting user clicks such a link, the malicious script gets executed in their browser, leveraging the user's authenticated session to perform unauthorized operations. The reflected nature of this XSS vulnerability means that the malicious payload is reflected off the web server rather than being stored, making it particularly challenging to detect and prevent through traditional security measures. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically classified as a reflected XSS variant that operates without requiring authentication from the attacker, making it particularly dangerous in environments where users may encounter malicious links in emails, forums, or other web content.
The operational impact of CVE-2023-23830 extends beyond simple script execution as it can enable attackers to hijack user sessions, steal sensitive information, manipulate data, or redirect users to malicious websites. In the context of membership and profile management systems, this vulnerability could allow unauthorized individuals to access protected content, modify user profiles, or even gain administrative privileges if the targeted user possesses elevated permissions. The vulnerability affects WordPress environments where ProfilePress is installed, potentially compromising thousands of websites that rely on this plugin for member management and team profile functionality. Attackers can leverage this vulnerability to perform actions such as cookie theft, session fixation, or data exfiltration, making it a significant concern for organizations that depend on user-generated content and authentication mechanisms.
Mitigation strategies for CVE-2023-23830 should prioritize immediate plugin updates to versions that address the reflected XSS vulnerability, as the vendor has likely released patches to correct the input sanitization and output encoding issues. Organizations should implement comprehensive input validation mechanisms that sanitize all user-supplied data before processing, utilize output encoding techniques such as HTML entity encoding for dynamic content, and deploy Content Security Policy headers to limit script execution. Additionally, web application firewalls and security monitoring systems should be configured to detect and block suspicious parameter patterns that could indicate XSS attack attempts. The vulnerability demonstrates the importance of proper security practices in WordPress plugin development, particularly around input validation and output sanitization, aligning with ATT&CK technique T1213 for Data from Information Repositories and T1566 for Phishing, as attackers can leverage this vulnerability to establish persistent access through compromised user sessions. Regular security audits and vulnerability assessments should be conducted to identify similar issues in other plugins and themes, ensuring comprehensive protection against similar reflected XSS vulnerabilities in the WordPress ecosystem.