CVE-2023-37981 in WPKube Authors List Plugin
Summary
by MITRE • 07/27/2023
Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in WPKube Authors List plugin <= 2.0.2 versions.
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Analysis
by VulDB Data Team • 08/20/2023
The vulnerability CVE-2023-37981 represents an unauthenticated reflected cross-site scripting flaw discovered in the WPKube Authors List WordPress plugin version 2.0.2 and earlier. This security weakness resides within the plugin's handling of user input parameters, specifically affecting the way the software processes and displays data returned from HTTP requests. The vulnerability allows attackers to inject malicious scripts into web pages viewed by other users, potentially compromising the security of websites running affected plugin versions. The reflected nature of this XSS vulnerability means that the malicious script is reflected off the web server rather than being stored on the server, making it particularly dangerous as it can be delivered through various attack vectors including malicious links or email attachments.
The technical implementation of this vulnerability stems from insufficient input validation and output sanitization within the WPKube Authors List plugin codebase. When users interact with the plugin's interface or when the plugin processes external requests containing user-supplied data, the application fails to properly escape or filter special characters that could be interpreted as HTML or JavaScript code. This lack of proper sanitization creates an environment where malicious actors can craft specially crafted URLs or request parameters that, when executed by a victim's browser, will execute arbitrary JavaScript code within the context of the vulnerable website. The vulnerability is classified as CWE-79 - Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security that affects the core functionality of input handling mechanisms.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform a wide range of malicious activities against users of affected websites. An attacker could leverage this XSS vulnerability to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious websites, or even install malware through browser-based attacks. The unauthenticated nature of the vulnerability means that no prior login credentials or administrative privileges are required to exploit the flaw, making it particularly dangerous for website administrators and their visitors. This weakness can significantly compromise the integrity of the website and the trust of its users, potentially leading to data breaches, reputation damage, and regulatory compliance violations that may result in substantial financial and legal consequences.
Mitigation strategies for CVE-2023-37981 should prioritize immediate remediation through the upgrade of the WPKube Authors List plugin to version 2.0.3 or later, which contains the necessary patches to address the reflected XSS vulnerability. Security administrators should also implement additional protective measures including the deployment of web application firewalls that can detect and block malicious script injection attempts, regular monitoring of plugin updates, and the implementation of Content Security Policies that restrict the execution of unauthorized scripts on the website. Organizations should also consider conducting security audits of their WordPress installations to identify other potentially vulnerable plugins or themes, while implementing proper input validation mechanisms and output encoding practices throughout their web applications. The vulnerability serves as a reminder of the critical importance of keeping all web application components updated and following secure coding practices that prevent the injection of malicious content into web pages.