CVE-2026-62005 in Muzicon Plugin
Summary
by MITRE • 10/29/2026
Unauthenticated PHP Object Injection in Muzicon <= 1.15 versions.
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Analysis
by VulDB Data Team • 10/29/2026
The vulnerability identified as an unauthenticated PHP object injection flaw within the Muzicon application, specifically affecting versions up to and including 1.15, represents a critical security risk that stems from improper handling of user-supplied input during the serialization process. This type of vulnerability occurs when an application accepts data from users without sufficient validation or sanitization before passing it into PHP's unserialize function. In many modern web applications, particularly those built on frameworks like Laravel which Muzicon appears to utilize, objects are often serialized for storage in sessions, cookies, or database fields. When the input used to reconstruct these objects is not strictly controlled, an attacker can craft a malicious payload that exploits publicly available class definitions within the application and its dependencies. This allows the injection of arbitrary PHP object instances into the execution context, bypassing standard authentication mechanisms entirely since the exploitation relies on the inherent behavior of the serialization engine rather than valid user credentials.
From a technical perspective, this flaw is categorized under CWE-502, which denotes Deserialization of Untrusted Data. The core issue lies in the lack of integrity checks or type validation for data that triggers object instantiation. In PHP applications utilizing frameworks such as Laravel, developers often rely on magic methods like __wakeup(), __destruct(), or __toString() to perform cleanup tasks or display information when an object is unserialized. An attacker can leverage these hooks by constructing a chain of objects known as a gadget chain. By carefully selecting classes available in the application's environment, such as those related to file handling, database connections, or command execution, the attacker can manipulate the state of these objects during deserialization. This manipulation effectively allows for Remote Code Execution (RCE), where arbitrary commands are executed on the server with the privileges of the web service process. The absence of authentication makes this vulnerability particularly dangerous as it lowers the barrier to entry significantly, allowing any anonymous user or automated scanner to exploit the flaw without needing prior access credentials.
The operational impact of this vulnerability is severe and multifaceted. Successful exploitation can lead to complete compromise of the underlying server infrastructure. Attackers may read sensitive configuration files containing database passwords or API keys, modify application data such as music library metadata or user profiles, or execute system commands to install backdoors for persistent access. In a production environment hosting Muzicon, this could result in unauthorized distribution of copyrighted material if the file handling components are exploited, leading to significant legal and reputational consequences. Furthermore, because PHP object injection often interacts with other common vulnerabilities like SQL Injection via database-related gadget chains, the potential scope of damage extends beyond simple code execution to include data exfiltration and integrity violations across the entire application stack. The ability to act unauthenticated means that automated botnets can easily discover and exploit this flaw at scale, potentially leading to widespread compromise if multiple instances are running without immediate patching.
To mitigate this vulnerability, it is imperative for administrators of Muzicon installations to upgrade immediately to a version greater than 1.15 where the issue has been addressed by the developers through stricter input validation or the removal of vulnerable deserialization points. For organizations unable to update instantly due to compatibility constraints, several defensive measures can be implemented at the infrastructure level. One effective strategy is implementing an allowlist-based approach for serialization if custom code allows it, ensuring that only expected classes are instantiated during unserialization operations. Additionally, deploying a Web Application Firewall (WAF) with rules specifically tuned to detect PHP object injection patterns in POST and GET parameters can provide a layer of protection against exploitation attempts. It is also recommended to disable dangerous PHP functions such as unserialize if they are not strictly required for core functionality, or to use alternative data formats like JSON which do not support arbitrary code execution upon parsing. Regular security audits focusing on CWE-502 patterns in legacy and third-party components should be conducted to prevent similar issues from arising in the future.