SB2021042006 - Remote code execution in Grav

Description

This security bulletin contains information about 1 vulnerability.

1) Code Injection (CVE-ID: CVE-2021-29440)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the enablement of processing of static pages. A remote authenticated attacker can send a specially crafted request and execute arbitrary code on the target system with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc
• https://packagist.org/packages/getgrav/grav