CVE-2024-28116 Server-Side Template Injection (SSTI) with Grav CMS security sandbox bypass

What is CVE-2024-28116?

CVE-2024-28116 is a high-severity code injection vulnerability in Getgrav Grav, published on 21 Mar 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Grav is an open-source, flat-file content management system. Grav CMS prior to version 1.7.45 is vulnerable to a Server-Side Template Injection (SSTI), which allows any authenticated user (editor permissions are sufficient) to execute arbitrary code on the remote server bypassing the existing security sandbox. Version 1.7.45 contains a patch for this issue.

Weakness: CWE-94, CWE-1336

Which versions are affected by CVE-2024-28116?

2 open source packages ship an affected version, including getgrav/grav. It affects 1 product.

Products include Getgrav Grav.

How do I fix CVE-2024-28116?

Upgrade getgrav/grav to 1.7.45 or later.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2024-28116 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-28116 exists.

Public exploit code: 4 proofs of concept on GitHub.

Other vulnerabilities in Getgrav Grav

• CVE-2023-34251 Grav Server Side Template Injection vulnerability Critical 10.0
• CVE-2025-46199 Cross-site scripting in n/a Critical 9.8
• CVE-2021-47812 GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2) Critical 9.3
• CVE-2025-66844 Grav may be vulnerable to SSRF attack via Twig Templates Critical 9.1
• CVE-2022-2073 Code Injection in getgrav/grav Critical 9.1

All Getgrav Grav vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-c9gp-64c4-2rrh.