---
id: CVE-2026-4559
title: >-
  The Image Photo Gallery Final Tiles Grid plugin for WordPress is vulnerable to
  Stored Cross-Site Scripting via the 'delay' shortcode attribute in all
  versions up to, and including, 3.6.12 due to insufficient input sanitization
  and output…
summary: >-
  The Image Photo Gallery Final Tiles Grid plugin for WordPress is vulnerable to
  Stored Cross-Site Scripting via the 'delay' shortcode attribute in all
  versions up to, and including, 3.6.12 due to insufficient input sanitization
  and output…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-08-22'
updated: '2026-08-22'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-4559'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/final-tiles-grid-gallery-lite/trunk/lib/gallery-class.php#L235
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/final-tiles-grid-gallery-lite/trunk/lib/gallery-class.php#L34
    label: security@wordfence.com
  - url: 'https://plugins.trac.wordpress.org/changeset/3490676/'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/afcb5fc3-8e53-4a0e-b4b3-26786d2f67d3?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-08-23T04:42:14.821Z'
epss: 0.00317
epssPercentile: 0.24912
---

## Overview

The Image Photo Gallery Final Tiles Grid plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'delay' shortcode attribute in all versions up to, and including, 3.6.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

## Remediation

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