CVE-2024-28118: getgrav grav Code Injection

Vulnerability summary

CVE-2024-28118 is a high (CVSS 8.8) Code Injection vulnerability in getgrav grav. EPSS estimates a 1.22% chance of exploitation in the next 30 days, higher than 68.2% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 21-03-2024
   PublishedVulnerability first disclosed.
2. 02-08-2024
   Last modifiedVulnerability information updated.

Description

Grav is an open-source, flat-file content management system. Prior to version 1.7.45, due to the unrestricted access to twig extension class from Grav context, an attacker can redefine config variable. As a result, attacker can bypass a previous SSTI mitigation. 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. Version 1.7.45 contains a fix for this issue.

• CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.