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Arbitrary Code Execution Affecting getgrav/grav package, versions <1.7.11

0.0
high

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    User Interaction Required
    Scope Changed
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Mature
    EPSS 2.73% (91st percentile)
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NVD
7.2 high

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  • Snyk ID SNYK-PHP-GETGRAVGRAV-1245463
  • published 14 Apr 2021
  • disclosed 14 Apr 2021
  • credit Unknown
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Introduced: 14 Apr 2021

CVE-2021-29440 Open this link in a new tab
CWE-94 Open this link in a new tab

How to fix?

Upgrade getgrav/grav to version 1.7.11 or higher.

Overview

getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS.

Affected versions of this package are vulnerable to Arbitrary Code Execution. Twig processing of static pages can be enabled in the front matter by any administrative user allowed to create or edit pages. As the Twig processor runs unsandboxed, this behavior can be used to gain arbitrary code execution and elevate privileges on the instance.