CVE-2026-62004 in Motorix Plugin
Summary
by MITRE • 10/29/2026
Unauthenticated PHP Object Injection in Motorix <= 1.11 versions.
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Analysis
by VulDB Data Team • 10/29/2026
The vulnerability identified as an unauthenticated PHP object injection flaw within Motorix versions prior to or equal to 1.11 represents a critical security deficiency that allows attackers to execute arbitrary code on the target server without requiring valid credentials. This type of vulnerability stems from the improper handling of user-supplied input during the deserialization process, where data is converted back into PHP objects. In many modern web applications, including those built with frameworks like WordPress which Motorix likely integrates with or extends, serialization is frequently used to store complex state information in cookies, session variables, or database fields. When an application accepts serialized data from untrusted sources and passes it directly to a deserialization function such as unserialize without adequate validation or sanitization, it creates a pathway for malicious actors to manipulate the internal object states of the application.
The technical mechanism behind this flaw typically involves the exploitation of PHP magic methods, which are special functions like __wakeup, __destruct, or __toString that are automatically invoked during serialization and deserialization processes. An attacker crafts a specific serialized string containing a gadget chain—a sequence of existing classes within the application or its dependencies—that performs unintended actions when instantiated. Because this vulnerability is unauthenticated, the attack surface is significantly expanded as any anonymous user interacting with the vulnerable endpoint can trigger the injection. This bypasses traditional access controls and authentication mechanisms that would otherwise restrict such high-privilege operations to authorized administrators only. The attacker does not need to guess passwords or exploit session hijacking techniques; they simply need to send a specially crafted HTTP request containing the malicious serialized payload, which the server then processes as if it were legitimate application data.
The operational impact of this vulnerability is severe and potentially catastrophic for system integrity. Successful exploitation allows an attacker to achieve remote code execution on the web server hosting Motorix. This means the attacker can run arbitrary commands with the privileges of the web server process, often leading to full compromise of the underlying operating system. Consequences include unauthorized access to sensitive data such as user credentials, personal information, and financial records stored in associated databases. Furthermore, attackers may use this foothold to install backdoors, launch distributed denial-of-service attacks using the compromised infrastructure as a botnet node, or pivot into other parts of the internal network if the server has broader connectivity. The lack of authentication requirement makes automated scanning tools highly effective at finding and exploiting these instances on a large scale, increasing the likelihood of widespread compromise across vulnerable deployments.
Mitigation strategies must focus primarily on immediate patching and long-term secure coding practices. Administrators should upgrade Motorix to version 1.12 or later immediately, as this update addresses the underlying deserialization logic flaws that permit object injection. For systems where upgrading is not immediately feasible, temporary mitigations include implementing strict input validation at the web application firewall level to block requests containing suspicious serialized data patterns. Additionally, enabling PHP configuration settings such as disable_functions can restrict access to dangerous system commands, although this does not prevent code execution entirely and should be viewed only as a compensating control rather than a fix. From a development perspective, avoiding the use of unserialize with untrusted input is paramount; developers should utilize safer data interchange formats like JSON for state management or implement strict allow-lists for class names during deserialization to ensure that only expected objects can be instantiated.
This vulnerability aligns closely with Common Weakness Enumeration identifier CWE-502, which describes Deserialization of Untrusted Data. It also maps to the MITRE ATT&CK framework under techniques related to Command and Scripting Interpreter execution via injection vectors, specifically highlighting how unauthenticated access facilitates initial compromise in web application attacks. Understanding these mappings helps security teams prioritize remediation efforts based on standardized risk assessments rather than relying solely on vendor advisories. Continuous monitoring of server logs for unusual deserialization errors or unexpected process executions can aid in early detection of exploitation attempts before significant damage occurs, ensuring that the integrity and confidentiality of the Motorix deployment remain intact against evolving threat landscapes.