CVEvulnerability

CVE-2023-34448

7.2 HIGH Published 2023-06-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-06-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-1336, CWE-20, CWE-94

Description

Grav is a flat-file content management system. Prior to version 1.7.42, the patch for CVE-2022-2073, a server-side template injection vulnerability in Grav leveraging the default `filter()` function, did not block other built-in functions exposed by Twig's Core Extension that could be used to invoke arbitrary unsafe functions, thereby allowing for remote code execution. A patch in version 1.74.2 overrides the built-in Twig `map()` and `reduce()` filter functions in `system/src/Grav/Common/Twig/Extension/GravExtension.php` to validate the argument passed to the filter in `$arrow`.

Affected configurations

• getgrav grav (< 1.7.42)

Related

Weakness · CWE (3)

  • CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine weakness
  • CWE-20 Improper Input Validation weakness
  • CWE-94 Improper Control of Generation of Code weakness

References