Code Injection in Grav CMS - CVE-2021-29440
Published: April 20, 2021 / Updated: June 17, 2021
Vulnerability identifier: #VU52363
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2021-29440
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
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.
Affected software
Grav CMS
How to mitigate CVE-2021-29440
Install updates from vendor's website.
Grav CMS - update to 1.7.11