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  5. CVE-2023-34251

CVE-2023-34251: Improper Control of Generation of Code ('Code Injection')

June 16, 2023

Grav is a flat-file content management system. Versions prior to 1.7.42 is vulnerable to server side template injection. Remote code execution is possible by embedding malicious PHP code on the administrator screen by a user with page editing privileges. Version 1.7.42 contains a fix for this issue.

References

  • github.com/advisories/GHSA-f9jf-4cp4-4fq5
  • github.com/getgrav/grav/blob/develop/system/src/Grav/Common/Twig/Extension/GravExtension.php
  • github.com/getgrav/grav/commit/244758d4383034fe4cd292d41e477177870b65ec
  • github.com/getgrav/grav/commit/71bbed12f950de8335006d7f91112263d8504f1b
  • github.com/getgrav/grav/commit/8c2c1cb72611a399f13423fc6d0e1d998c03e5c8
  • github.com/getgrav/grav/commit/9d01140a63c77075ef09b26ef57cf186138151a5
  • github.com/getgrav/grav/security/advisories/GHSA-f9jf-4cp4-4fq5
  • nvd.nist.gov/vuln/detail/CVE-2023-34251

Code Behaviors & Features

Detect and mitigate CVE-2023-34251 with GitLab Dependency Scanning

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Affected versions

All versions before 1.7.42

Fixed versions

  • 1.7.42

Solution

Upgrade to version 1.7.42 or above.

Impact 7.2 HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-94: Improper Control of Generation of Code ('Code Injection')

Source file

packagist/getgrav/grav/CVE-2023-34251.yml

Spotted a mistake? Edit the file on GitLab.

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