CVE-2026-28063 in Asia Garden Plugin
Summary
by MITRE • 03/05/2026
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Asia Garden asia-garden allows PHP Local File Inclusion.This issue affects Asia Garden: from n/a through <= 1.3.1.
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Analysis
by VulDB Data Team • 03/07/2026
The CVE-2026-28063 vulnerability represents a critical PHP Remote File Inclusion flaw that specifically impacts the ThemeREX Asia Garden theme version 1.3.1 and earlier. This vulnerability stems from improper control of filename parameters in include/require statements within the PHP application code. The flaw allows attackers to manipulate the include/require functionality to load arbitrary files from remote servers or local file systems, creating a pathway for unauthorized code execution and system compromise. The vulnerability manifests when user-supplied input is directly incorporated into file inclusion directives without adequate validation or sanitization, making it particularly dangerous in web applications where user input is common.
The technical implementation of this vulnerability occurs when the application accepts file paths or names through user-controllable parameters such as GET or POST variables and directly uses these values in include or require statements. In the context of the Asia Garden theme, this typically involves parameters that specify template files, configuration files, or other PHP components that should be loaded dynamically. The lack of proper input validation means that an attacker can inject malicious file paths that point to remote servers hosting malicious PHP code or local system files that contain sensitive information. This vulnerability directly maps to CWE-98, which describes improper control of dynamic code generation, and CWE-88, which covers improper neutralization of argument delimiters in a command. The flaw essentially allows attackers to bypass normal access controls and execute arbitrary PHP code within the context of the web application.
The operational impact of CVE-2026-28063 extends far beyond simple code execution, as it provides attackers with a potential foothold for complete system compromise. Successful exploitation can lead to unauthorized access to sensitive data, server-side code manipulation, and potential lateral movement within network environments. Attackers can leverage this vulnerability to upload backdoors, steal database credentials, modify website content, or even establish persistent access through the compromised web application. The vulnerability's impact is amplified in environments where the web server has elevated privileges or where the application is deployed in shared hosting environments where multiple websites are hosted on the same server. According to ATT&CK framework, this vulnerability aligns with T1190 for Exploit Public-Facing Application and T1059 for Command and Scripting Interpreter, as it allows for command execution through PHP code injection. The vulnerability also supports T1083 for File and Directory Discovery, as attackers can use the LFI capability to explore the file system and identify sensitive files.
Mitigation strategies for CVE-2026-28063 should focus on implementing proper input validation and sanitization mechanisms. Organizations should immediately upgrade to version 1.3.2 or later of the Asia Garden theme, as this update likely contains patches addressing the vulnerability. Additionally, administrators should implement strict input validation that rejects any input containing suspicious characters or patterns such as ../, ../../, or absolute paths that could be used to traverse directories. The implementation of a whitelist approach for file inclusion, where only predetermined, safe file paths are accepted, provides an effective defense mechanism. Security measures should also include disabling remote file inclusion capabilities in PHP configuration settings and implementing proper access controls and file permissions. Network monitoring should be enhanced to detect suspicious file inclusion patterns, and regular security audits should be conducted to identify potential vulnerabilities in similar applications. Organizations should also consider implementing web application firewalls and intrusion detection systems to provide additional layers of protection against exploitation attempts. The vulnerability highlights the critical importance of following secure coding practices and adhering to the principle of least privilege when implementing dynamic file inclusion mechanisms in PHP applications.