CVE-2021-36766

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Source

https://cve.org/CVERecord?id=CVE-2021-36766

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36766.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-36766

Published

2021-07-30T14:15:18.283Z

Modified

2026-04-10T04:35:38.578477Z

Severity

7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

Concrete5 through 8.5.5 deserializes Untrusted Data. The vulnerable code is located within the controllers/singlepage/dashboard/system/environment/logging.php Logging::updatelogging() 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.

References

Affected packages

Git / github.com/concretecms/concretecms

Affected ranges

Type

GIT

Repo

https://github.com/concretecms/concretecms

Events

Introduced

Fixed

f9c8e08d3651a250f42e0c0a8cc18bc64b42733f

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "8.5.6"
        }
    ]
}

Affected versions

5.*

5.7.0

5.7.0.1

5.7.0.3

5.7.0.4

5.7.1

5.7.2

5.7.2.1

5.7.3

5.7.3.1

5.7.4.1

5.7.5.2

5.7.5.5

5.7.5.6

5.7.5.7

8.*

8.1.0

8.2.0

8.2.0RC2

8.2.1

8.3.1

8.4.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36766.json"