---
id: CVE-2026-109322
title: >-
  Grav Guestbook plugin before 0.5.2 contains a stored cross-site scripting
  vulnerability because its AJAX Load more and Admin Load all handlers insert
  stored author and message fields into the DOM as unescaped HTML via jQuery
summary: >-
  Grav Guestbook plugin before 0.5.2 contains a stored cross-site scripting
  vulnerability because its AJAX Load more and Admin Load all handlers insert
  stored author and message fields into the DOM as unescaped HTML via jQuery.
  Unauthentic…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T17:17:27.400'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109322'
references:
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-jgpj-gchm-6j29'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/grav-guestbook-before-0.5.2-stored-xss-via-ajax-pagination-and-admin-views
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-12T18:00:08.201Z'
---

## Overview

Grav Guestbook plugin before 0.5.2 contains a stored cross-site scripting vulnerability because its AJAX Load more and Admin Load all handlers insert stored author and message fields into the DOM as unescaped HTML via jQuery. Unauthenticated visitors can submit markup that executes in other visitors' browsers and, in versions 0.5.0 and 0.5.1, in administrator moderation sessions.

## Remediation

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