SCA: security update for getgrav/grav (GHSA-9436-3gmp-4f53)

high Tenable Self-Hosted Container Security Plugin ID 413012

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Grav is a file-based Web-platform built in PHP. Grav is subject to a server side template injection (SSTI)
vulnerability. The fix for another SSTI vulnerability using `|map`, `|filter` and `|reduce` twigs
implemented in the commit `71bbed1` introduces bypass of the denylist due to incorrect return value from
`isDangerousFunction()`, which allows to execute the payload prepending double backslash (`\\`). The
`isDangerousFunction()` check in version 1.7.42 and onwards retuns `false` value instead of `true` when
the `\` symbol is found in the `$name`. This vulnerability can be exploited if the attacker has access to:
1. an Administrator account, or 2. a non-administrator, user account that has Admin panel access and
Create/Update page permissions. A fix for this vulnerability has been introduced in commit `b4c6210` and
is included in release version `1.7.42.2`. Users are advised to upgrade. There are no known workarounds
for this vulnerability. (CVE-2023-37897)

See Also

https://github.com/advisories/GHSA-9436-3gmp-4f53

Plugin Details

Severity: High

ID: 413012

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 6/1/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.58

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2023-37897

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/19/2023

Vulnerability Publication Date: 7/18/2023

Reference Information

CVE: CVE-2023-37897