---
id: CVE-2026-109319
title: >-
  Grav Guestbook plugin 0.5.0 and 0.5.1 contains missing authorization and
  cross-site request forgery vulnerabilities in Admin moderation actions delete,
  approve, and approveAll
summary: >-
  Grav Guestbook plugin 0.5.0 and 0.5.1 contains missing authorization and
  cross-site request forgery vulnerabilities in Admin moderation actions delete,
  approve, and approveAll. Authenticated Admin users lacking the admin.guestbook
  permis…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-862
vendor: getgrav
product: grav-plugin-guestbook
affected:
  - grav-plugin-guestbook >= 0.5.0 < 0.5.2
published: '2026-10-12'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T15:12:54.040'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109319'
references:
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-wxr7-h5mm-c7mv'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/grav-guestbook-plugin-0.5.0-and-0.5.1-missing-authorization-and-csrf-in-moderation
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00201
epssPercentile: 0.09884
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-13T15:48:56.107959Z'
ingestedAt: '2026-10-12T18:00:08.201Z'
---

## Overview

Grav Guestbook plugin 0.5.0 and 0.5.1 contains missing authorization and cross-site request forgery vulnerabilities in Admin moderation actions delete, approve, and approveAll. Authenticated Admin users lacking the admin.guestbook permission, or external sites abusing a moderator's session via nonce-less GET requests, can delete or approve Guestbook entries.

## Remediation

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