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Arbitrary Code Execution Affecting october/system package, versions >=1.0.319, <1.0.474 >=1.1.0, <1.1.10

0.0
high

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.52% (77th percentile)
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NVD
7.2 high

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  • Snyk ID SNYK-PHP-OCTOBERSYSTEM-2412703
  • published 24 Feb 2022
  • disclosed 24 Feb 2022
  • credit David Miller
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Introduced: 24 Feb 2022

CVE-2022-21705 Open this link in a new tab
CWE-74 Open this link in a new tab

How to fix?

Upgrade october/system to version 1.0.474, 1.1.10 or higher.

Overview

october/system is a System module for October CMS.

Affected versions of this package are vulnerable to Arbitrary Code Execution due to improper user input sanitization before rendering. An authenticated user with the permissions to create, modify and delete website pages can exploit this vulnerability to bypass cms.safe_mode or cms.enableSafeMode in order to execute arbitrary code.

Note:

  1. This issue only affects admin panels that rely on safe mode and restricted permissions.

  2. To exploit this vulnerability, an attacker must first have access to the backend area.