---
id: CVE-2026-72696
title: >-
  Grav CMS before 2.0.16 contains a symlink following vulnerability in Scheduler
  Job::createLockFile() that allows local attackers to overwrite arbitrary files
  by pre-creating symlinks at predictable lock file paths in the world-writable
  t…
summary: >-
  Grav CMS before 2.0.16 contains a symlink following vulnerability in Scheduler
  Job::createLockFile() that allows local attackers to overwrite arbitrary files
  by pre-creating symlinks at predictable lock file paths in the world-writable
  t…
severity: high
cvss: 8.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-59
published: '2026-08-25'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T15:10:00.207'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72696'
references:
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-q8w8-6cq5-j4h2'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/grav-cms-before-symlink-following-via-createlockfile
    label: disclosure@vulncheck.com
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-q8w8-6cq5-j4h2'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00196
epssPercentile: 0.08581
ingestedAt: '2026-10-12T15:55:08.147Z'
---

## Overview

Grav CMS before 2.0.16 contains a symlink following vulnerability in Scheduler Job::createLockFile() that allows local attackers to overwrite arbitrary files by pre-creating symlinks at predictable lock file paths in the world-writable temp directory. Attackers can place a symlink at the predictable lock path pointing to any file the web server process can write to, and the next scheduled job run will follow the symlink and overwrite the target file's content with the job ID string.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.