CVE-2021-29440

 

Published at: - 13-04-2021 10:15

Last modified: - 02-08-2022 06:15

Total changes: - 5

Description

Grav is a file based Web-platform. 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. The issue was addressed in version 1.7.11.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://packagist.org/packages/getgrav/grav
• https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc
• http://packetstormsecurity.com/files/162987/Grav-CMS-1.7.10-Server-Side-Template-Injection.html
• https://blog.sonarsource.com/grav-cms-code-execution-vulnerabilities

 

Keywords

NVD

 

CVE-2021-29440

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures