---
id: CVE-2026-107757
title: >-
  The Gallery Custom Links plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the 'display_name (profile.php) + comment
  (wp-comments-post.php)' parameter in all versions up to, and including, 2.3.3
  due to insufficient in…
summary: >-
  The Gallery Custom Links plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the 'display_name (profile.php) + comment
  (wp-comments-post.php)' parameter in all versions up to, and including, 2.3.3
  due to insufficient in…
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T08:17:05.040'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107757'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/gallery-custom-links/tags/2.3.3/classes/core.php#L103
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/gallery-custom-links/tags/2.3.3/classes/core.php#L215
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/gallery-custom-links/tags/2.3.3/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php#L2112
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/gallery-custom-links/tags/2.3.3/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php#L2207
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/gallery-custom-links/tags/2.3.3/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php#L502
    label: security@wordfence.com
  - url: 'https://plugins.trac.wordpress.org/changeset/3737485/gallery-custom-links'
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3737485/gallery-custom-links/trunk/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/f37a0db8-b13c-4d9f-bc6f-88576f9e3862?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-10-14T08:23:04.343Z'
---

## Overview

The Gallery Custom Links plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'display_name (profile.php) + comment (wp-comments-post.php)' parameter in all versions up to, and including, 2.3.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploit requires two coordinated inputs from the same authenticated attacker: an HTML comment payload stored in a comment body (preserved verbatim by WordPress comment kses) and a matching simple_html_dom noise key placed in the attacker's display_name (which survives esc_attr() intact), with substitution occurring after both filters have run during the plugin's default-on output-buffering pass over the full rendered page.

## Remediation

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