#VU87715 Code Injection in Grav CMS - CVE-2024-28117

Vulnerability identifier: #VU87715

Vulnerability risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2024-28117

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Grav CMS
Web applications / CMS

Vendor: Grav CMS

Description

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

The vulnerability exists due to Server Side Template Injection (SSTI) issue within twig functions. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Grav CMS: 1.7.0 - 1.7.44

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External links
https://github.com/getgrav/grav/security/advisories/GHSA-qfv4-q44r-g7rv
https://github.com/getgrav/grav/commit/de1ccfa12dbcbf526104d68c1a6bc202a98698fe

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.