PixelYourSite Insecure Deserialization Vulnerability

A vulnerability allowing insecure deserialization has been identified in PixelYourSite - Your smart PIXEL (TAG) and API Manager version 10.1.1.1. This issue arises because unvalidated user input is directly used in an unserialize function, which can lead to potential exploitation.

Impact

Exploitation of this vulnerability could allow for insecure deserialization, a common issue that can lead to various attacks, such as injecting malicious objects that could be executed or cause unintended behavior in the application.

Reproduction

The vulnerability can be reproduced by sending a POST request to the 'myapp/modules/facebook/facebook-server-a sync-task.php' endpoint with base64-encoded data that, when decoded, contains a serialized payload. The unserialize function will process this payload without validation, creating an opportunity for exploitation.

Remediation

Users can update to PixelYourSite Free version 10.1.1.2 or PixelYourSite Pro version 11.2.2.3 to address this vulnerability.