CVE-2023-1011 in ChatBot Plugin
Summary
by MITRE • 05/08/2023
The AI ChatBot WordPress plugin before 4.4.5 does not escape most of its settings before outputting them back in the dashboard, and does not have a proper CSRF check, allowing attackers to make a logged in admin set XSS payloads in them.
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Analysis
by VulDB Data Team • 05/18/2023
The CVE-2023-1011 vulnerability affects the AI ChatBot WordPress plugin version 4.4.4 and earlier, presenting a critical security flaw that enables unauthorized cross-site scripting attacks through the WordPress administrative interface. This vulnerability stems from inadequate output escaping mechanisms within the plugin's dashboard settings management system, where user-controllable input values are directly rendered back to administrators without proper sanitization or encoding. The flaw specifically impacts how the plugin handles configuration data that gets displayed in the WordPress admin area, creating an environment where malicious actors can inject malicious scripts that execute in the context of privileged administrator sessions.
The technical implementation of this vulnerability involves two primary weaknesses that compound to create a dangerous attack vector. First, the plugin fails to properly escape output when displaying settings values within the WordPress dashboard, allowing HTML and JavaScript code to be rendered directly in the admin interface. Second, the absence of proper Cross-Site Request Forgery protection mechanisms means that attackers can craft malicious requests that will be executed by authenticated administrators without their knowledge or consent. This combination creates a scenario where an attacker can manipulate plugin settings through CSRF attacks and then execute stored XSS payloads when administrators view the affected dashboard sections. The vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws, and aligns with ATT&CK technique T1546.001 for 'Setuid and Setgid' and T1059.001 for 'Command and Scripting Interpreter' as it enables execution of malicious code through the compromised administrative session.
The operational impact of this vulnerability extends beyond simple XSS execution, as it provides attackers with persistent access to WordPress administrative functions and potentially full control over the affected website. When administrators view pages containing the maliciously injected script, the payload executes in their browser with full administrative privileges, allowing attackers to modify plugin settings, access sensitive data, modify content, and potentially install additional malicious plugins. The persistent nature of this vulnerability means that once an administrator views the affected dashboard page, the malicious code will execute every time they access that interface, creating a long-term attack vector. Attackers can leverage this access to escalate privileges, modify user accounts, steal session cookies, and potentially establish backdoors for continued access.
Mitigation strategies for CVE-2023-1011 focus primarily on immediate plugin updates to version 4.4.5 or later, which includes proper output escaping and CSRF protection mechanisms. Administrators should also implement additional security measures such as monitoring WordPress admin activity for suspicious setting modifications, implementing web application firewalls with XSS detection capabilities, and conducting regular security audits of installed plugins and themes. Network-level protections can include implementing Content Security Policy headers that restrict script execution and prevent unauthorized code injection. Security hardening practices such as restricting administrative privileges, implementing multi-factor authentication, and regularly updating all WordPress components help reduce the overall attack surface. The vulnerability demonstrates the importance of proper input validation and output escaping in web applications, particularly in administrative interfaces where privileged access exists. Organizations should also consider implementing security monitoring solutions that can detect anomalous administrative activities and unauthorized configuration changes that may indicate exploitation attempts.