CVE-2024-28116: grav Code Injection — Exploit & Fix

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.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-94 CWE-94

CWE-1336 CWE-1336

Affected Products

Vendor	Product	Versions
getgrav	grav	< 1.7.45

References

Advisories & Patches

https://github.com/getgrav/grav/commit/4149c81339274130742831422de2685f298f3a6e https://github.com/getgrav/grav/security/advisories/GHSA-c9gp-64c4-2rrh https://github.com/getgrav/grav/commit/4149c81339274130742831422de2685f298f3a6e https://github.com/getgrav/grav/security/advisories/GHSA-c9gp-64c4-2rrh

Exploits

https://github.com/getgrav/grav/security/advisories/GHSA-c9gp-64c4-2rrh https://github.com/getgrav/grav/security/advisories/GHSA-c9gp-64c4-2rrh

Frequently Asked Questions

What is CVE-2024-28116? +

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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2024-28116? +

CVE-2024-28116 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-28116? +

CVE-2024-28116 affects products from getgrav, specifically: grav. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-28116? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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