Description

Editor PHP Object Injection in Car Rental Manager <= 1.3.9 versions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.2",
  "pubDate": "2026-08-13T14:16:55.987Z",
  "pubdate": "2026-08-13T14:16:55.987Z",
  "executiveSummary": "An object injection vulnerability has been identified in the Car Rental Manager plugin in versions up to and including 1.3.9. This security flaw originates from insecure handling of serialized data by editor-level users within the application. Successful exploitation of this vulnerability allows authenticated attackers with editor privileges to execute arbitrary code, manipulate application data, or perform unauthorized operations depending on the available gadget chains within the PHP environment. The risk implication is severe, potentially leading to full compromise of the underlying web application and server infrastructure if compatible object injection gadgets are present. Exploitation requires the attacker to possess specific editor-level credentials within the target system and the ability to interact with the vulnerable editor functionality handling the malicious serialized payload.",
  "technicalDetails": "The vulnerability resides in the Car Rental Manager application in versions <= 1.3.9, specifically within components handling data processing for users with editor privileges. The root cause of the vulnerability is the unsafe deserialization of untrusted input using native PHP deserialization functions such as unserialize(), without proper validation or sanitization of the input data stream.\nAttack flow begins when an authenticated attacker with editor privileges crafts a malicious serialized PHP object payload designed to leverage existing classes and methods within the application or its dependent libraries as gadget chains. The attacker submits this crafted payload through vulnerable input vectors processed by the editor functionality of Car Rental Manager.\nWhen the vulnerable component passes the untrusted input to the deserialization routine, PHP reconstructs the object graph. During or immediately after the object instantiation process, magic methods such as __wakeup() or __destruct() within the included classes are automatically invoked. If the payload successfully chains these methods, the attacker can achieve arbitrary code execution, file manipulation, or database tampering within the context of the web server process.\nThe affected component is restricted to versions 1.3.9 and prior of Car Rental Manager. Exploitation requires network access to the target web application, authentication with editor-level privileges, and the presence of suitable gadget chains within the PHP application runtime environment. The post-exploitation impact includes complete compromise of confidentiality, integrity, and availability of the affected system."
}