---
id: CVE-2026-6641
title: >-
  The Media Library Assistant plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the 'mla_gallery' shortcode in versions up to and
  including 3.35
summary: >-
  The Media Library Assistant plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the 'mla_gallery' shortcode in versions up to and
  including 3.35. This is due to insufficient input sanitization and output
  escaping on the…
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
vendor: dglingren
product: Media Library Assistant
affected:
  - media_library_assistant <= 3.35
published: '2026-09-11'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T14:17:32.130'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-6641'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-shortcode-support.php#L2449
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-shortcode-support.php#L2484
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.34/includes/class-mla-shortcodes.php#L39
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shortcode-support.php#L2449
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shortcode-support.php#L2484
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/media-library-assistant/trunk/includes/class-mla-shortcodes.php#L39
    label: security@wordfence.com
  - url: 'https://plugins.trac.wordpress.org/changeset/3512155/'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/13602c35-a0f7-4651-af9a-0be9e581893a?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T13:58:07.817647Z'
ingestedAt: '2026-09-14T04:40:14.713Z'
epss: 0.00217
epssPercentile: 0.12457
---

## Overview

The Media Library Assistant plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'mla_gallery' shortcode in versions up to and including 3.35. This is due to insufficient input sanitization and output escaping on the mla_link_href parameter when mla_output is set to 'paginate_links', where the _paginate_links() function processes the value through mla_process_shortcode_parameter() and _replace_query_parameter() without proper URL escaping, then outputs it directly in href attributes without applying esc_url(). 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.