---
id: GHSA-pp9r-ppc4-25w4
title: >-
  Duplicate Advisory: Grav: FlexDirectory::dynamicDataField() executes arbitrary
  callables from blueprint data with no validation
summary: >-
  Duplicate Advisory: Grav: FlexDirectory::dynamicDataField() executes arbitrary
  callables from blueprint data with no validation
severity: high
cvss: 8.8
cwe:
  - CWE-470
vendor: getgrav
product: getgrav/grav
ecosystem: composer
affected:
  - 'getgrav/grav >= 1.7.0, < 2.0.9'
published: '2026-07-23'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:15:07Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-pp9r-ppc4-25w4'
references:
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-c4wf-2xxc-68qm'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-65608'
  - url: >-
      https://github.com/getgrav/grav/commit/fae9e1bf2c40ce0b50d0dfce647aaa1d22f98969
  - url: >-
      https://www.vulncheck.com/advisories/grav-before-remote-code-execution-via-flexdirectory
  - url: 'https://github.com/advisories/GHSA-pp9r-ppc4-25w4'
tags:
  - ghsa
  - composer
ingestedAt: '2026-09-17T17:23:30.692Z'
---

## Overview

### Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-c4wf-2xxc-68qm. This link is maintained to preserve external references.

### Original Description
Grav versions >= 1.7.0 and before 2.0.9 contain a remote code execution vulnerability. FlexDirectory::dynamicDataField() resolves blueprint data-*@: directives by calling call_user_func_array() on attacker-influenced input, validating only that the target is callable (is_callable()) without restricting dangerous functions such as exec, system, passthru, or shell_exec. Because FlexDirectory registers this handler for every Flex directory, it bypasses the validation added to Blueprint::dynamicData() in 2.0.7 (GHSA-fj2p-qj2f-74v5). Any authenticated user with create or update permission on any Flex-based directory (Flex Users, Flex Pages, Flex Objects, or custom Flex types) can execute arbitrary shell commands on the server.

## Affected packages

- `getgrav/grav >= 1.7.0, < 2.0.9`

## Remediation

Refer to the advisory for the patched release.