HIGH

CVE-2021-29440

CVSS v3

7.2

HIGH

EPSS Score

14.4%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical details

Published
4/13/2021

Frequently asked questions

What is CVE-2021-29440?

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.

Is CVE-2021-29440 actively exploited?

Active exploitation of CVE-2021-29440 has not been confirmed. The EPSS score is 14.4%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-29440?

CVE-2021-29440 has a CVSS v3 base score of 7.2 (HIGH severity).

Is CVE-2021-29440 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.