CVE-2021-36766 – Concrete5 through 8.5.5 deserializes Untrusted Data. The vulnerable code is located within …

Vuln ID: CVE-2021-36766

Published:  2021-07-30  14:15:18Z

Description: Concrete5 through 8.5.5 deserializes Untrusted Data. The vulnerable code is located within the controllers/single_page/dashboard/system/environment/logging.php Logging::update_logging() method. User input passed through the logFile request parameter is not properly sanitized before being used in a call to the file_exists() PHP function. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code.

Source: NVD.NIST.GOV

 


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