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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-07-27T05:38:42

Updated: 2024-08-04T01:01:59.251Z

Reserved: 2021-07-16T00:00:00

Link: CVE-2021-36766

cve-icon Vulnrichment

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cve-icon NVD

Status : Analyzed

Published: 2021-07-30T14:15:18.283

Modified: 2021-09-22T16:56:08.547

Link: CVE-2021-36766

cve-icon Redhat

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