CVE-2024-49281 in Click to Chat Plugin
Summary
by MITRE • 10/17/2024
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Ninja Team Click to Chat – WP Support All-in-One Floating Widget support-chat allows Stored XSS.This issue affects Click to Chat – WP Support All-in-One Floating Widget: from n/a through <= 2.3.3.
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Analysis
by VulDB Data Team • 04/06/2026
The vulnerability CVE-2024-49281 represents a critical security flaw in the Ninja Team Click to Chat WordPress plugin, specifically within the WP Support All-in-One Floating Widget component. This issue manifests as an improper neutralization of special elements used in operating system commands, creating a classic OS command injection vulnerability that can be exploited to execute arbitrary code on the affected system. The vulnerability exists in versions of the plugin ranging from the initial release through version 2.3.3, indicating a widespread impact across multiple iterations of the software. The flaw allows attackers to manipulate input fields that are subsequently processed by the system's command execution mechanisms without proper sanitization or validation.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the plugin's processing logic. When user-supplied data is accepted through various interface elements and subsequently passed to system commands without adequate escaping or filtering, malicious actors can inject OS commands that will be executed with the privileges of the web server process. This type of vulnerability is categorized under CWE-77 as "Improper Neutralization of Special Elements used in a Command ('Command Injection')", which is a well-documented weakness that has been exploited in numerous security incidents across different platforms. The vulnerability's presence in a WordPress plugin means that the attack surface extends to any website utilizing this specific component, potentially affecting thousands of installations.
The operational impact of this vulnerability is particularly severe as it enables attackers to gain unauthorized access to the underlying system and potentially escalate privileges to execute commands with elevated permissions. The stored XSS component adds another layer of complexity to the threat model, as it allows malicious scripts to be stored on the server and executed whenever the affected page is loaded. This dual nature of the vulnerability creates multiple attack vectors and increases the potential for persistent compromise. The attack chain typically involves an attacker submitting malicious input through the plugin's interface, which is then stored in the database and executed when the system processes the command or when the page is rendered to users. This vulnerability directly maps to ATT&CK technique T1059.001 for command and scripting interpreter, and T1566.001 for spearphishing attachments, as the compromised system could be used to deliver additional malicious payloads or establish persistence mechanisms.
Mitigation strategies for this vulnerability should prioritize immediate patching of the affected plugin to the latest available version that addresses the command injection flaw. System administrators should also implement comprehensive input validation and sanitization measures to prevent malicious data from reaching command execution points. Network-level defenses including web application firewalls and intrusion detection systems can help detect and block suspicious command execution patterns. Additionally, regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other components of the web application stack. The principle of least privilege should be enforced by ensuring that web server processes operate with minimal required permissions and that all user inputs are properly escaped before being incorporated into system commands. Organizations should also implement monitoring solutions to detect anomalous command execution patterns that could indicate exploitation attempts.