---
id: CVE-2025-66298
title: Grav is a file-based Web platform
summary: >-
  Grav is a file-based Web platform. Prior to 1.8.0-beta.27, having a simple
  form on site can reveal the whole Grav configuration details (including plugin
  configuration details) by using the correct POST payload to exploit a
  Server-Side T…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-1336
vendor: getgrav
product: grav
affected:
  - grav < 1.8.0
  - grav = 1.8.0
patched:
  - grav 1.8.0
published: '2025-12-01'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T00:10:00.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66298'
references:
  - url: >-
      https://github.com/getgrav/grav/commit/e37259527d9c1deb6200f8967197a9fa587c6458
    label: security-advisories@github.com
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-8535-hvm8-2hmv'
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00378
epssPercentile: 0.2905
ingestedAt: '2026-09-26T00:22:39.987Z'
---

## Overview

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, having a simple form on site can reveal the whole Grav configuration details (including plugin configuration details) by using the correct POST payload to exploit a Server-Side Template (SST) vulnerability. Sensitive information may be contained in the configuration details. This vulnerability is fixed in 1.8.0-beta.27.

## Affected

- `grav < 1.8.0`
- `grav = 1.8.0`

## Remediation

Upgrade past the affected range:

- `grav 1.8.0`