Description

Deserialization of Untrusted Data vulnerability in WP Sunshine Sunshine Photo Cart sunshine-photo-cart allows Object Injection.This issue affects Sunshine Photo Cart: from n/a through 3.7.1.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.2",
  "pubDate": "2026-10-05T20:17:28.537Z",
  "pubdate": "2026-10-05T20:17:28.537Z",
  "executiveSummary": "The Sunshine Photo Cart plugin, specifically versions ranging from n/a through 3.7.1, is susceptible to a Deserialization of Untrusted Data vulnerability.\nThis security flaw enables Object Injection, a critical vulnerability that allows an attacker to manipulate serialized objects passed into the application.\nBy crafting malicious serialized payloads, an attacker can potentially achieve arbitrary code execution, unauthorized data manipulation, or denial-of-service conditions within the WordPress environment.\nThe vulnerability stems from improper handling of user-supplied input before passing it to PHP's unserialize() function.\nThe risk is severe as it allows remote attackers to bypass security controls and execute arbitrary logic in the context of the web server process.\nExploitation generally requires the attacker to identify accessible entry points where user-controlled input is unserialized, potentially without requiring authentication depending on the implementation.",
  "technicalDetails": "The core of this vulnerability lies in the unsafe processing of serialized data within the Sunshine Photo Cart plugin. In PHP, the unserialize() function reconstructs objects from a string representation. When this function is used on untrusted, user-controllable input without prior validation or sanitization, it facilitates PHP Object Injection.\nThe root cause is the reliance on user-supplied data during the deserialization process. When an application deserializes data provided by a user, the PHP engine instantiates objects and may invoke 'magic methods' (such as __wakeup() or __destruct()) on the reconstructed objects automatically. If the application environment contains 'POP chains' (Property Oriented Programming)—sequences of magic methods present in the codebase or included third-party libraries—an attacker can leverage these to trigger unintended application behavior.\nThe attack flow typically follows these steps: 1. Identification: The attacker identifies an input vector (such as a POST parameter, cookie, or URL parameter) that is passed directly into a vulnerable unserialize() call within the plugin. 2. Payload Crafting: The attacker crafts a malicious serialized PHP string that, when deserialized, creates an object of a class existing in the application scope with properties specifically modified to influence application logic. 3. Injection: The attacker submits the payload to the vulnerable endpoint. 4. Execution: The application unserializes the malicious payload, triggering the attacker-controlled logic path through defined magic methods. 5. Impact: Depending on the available gadget chain, the attacker may achieve Remote Code Execution (RCE), arbitrary file deletion, or privilege escalation.\nThis vulnerability affects Sunshine Photo Cart versions from n/a through 3.7.1. Because the issue involves PHP's object serialization mechanism, it is inherently dangerous as it allows for the subversion of internal application state. The impact is significant, as it grants an attacker the ability to bypass application-level access controls and execute code with the privileges of the web server. Successful exploitation does not always require authentication, depending on whether the vulnerable entry point is accessible via public-facing endpoints.\nPost-exploitation impact includes full system compromise, data theft, or permanent denial of service, depending on the specific gadget chains available within the plugin's code and its dependencies."
}