CVE-2023-37897

CVSS 3.1 Score 8.8 of 10 (high)

Details

Published Jul 18, 2023
Updated: Jul 28, 2023
CWE ID 393
CWE ID 74

Summary

CVE-2023-37897 is a server-side template injection (SSTI) vulnerability in Grav, a file-based web platform built in PHP. This vulnerability affects Grav versions 1.7.42 and onwards. The issue arises due to an incorrect return value from the `isDangerousFunction()` check, allowing attackers to execute malicious code by prepending a double backslash. To exploit this vulnerability, the attacker needs access to either an Administrator account or a non-administrator user account with Admin panel access and Create/Update page permissions. A fix has been introduced in commit `b4c6210` and is included in release version `1.7.42.2`. It is recommended for users to upgrade as there are no known workarounds available. The vulnerability has a base severity score of 8.8 (High) according to NIST's CVSS v3.1 rating, with high impact on confidentiality, integrity, and availability of affected systems.

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