---
id: CVE-2026-100196
title: >-
  The LazyLoad Plugin – Lazy Load Images, Videos, and Iframes plugin for
  WordPress is vulnerable to Stored Cross-Site Scripting via the
  'comment_content (rendered inline into the page HTML)' parameter in all
  versions up to, and including, …
summary: >-
  The LazyLoad Plugin – Lazy Load Images, Videos, and Iframes plugin for
  WordPress is vulnerable to Stored Cross-Site Scripting via the
  'comment_content (rendered inline into the page HTML)' parameter in all
  versions up to, and including, …
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T07:16:39.833'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100196'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Dependencies/RocketLazyload/Image.php#L115
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Dependencies/RocketLazyload/Image.php#L116
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Dependencies/RocketLazyload/Image.php#L118
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Dependencies/RocketLazyload/Image.php#L70
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Subscriber/LazyloadSubscriber.php#L313
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Subscriber/LazyloadSubscriber.php#L326
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Subscriber/LazyloadSubscriber.php#L82
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&new=3730807%40rocket-lazy-load%2Ftags%2F2.4.1&old=3380138%40rocket-lazy-load%2Ftags%2F2.4.0
    label: security@wordfence.com
  - url: 'https://wordpress.org/plugins/rocket-lazy-load/'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/af1060c6-9247-4059-ad6e-993fb7cee6d4?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-10-10T07:26:21.919Z'
---

## Overview

The LazyLoad Plugin – Lazy Load Images, Videos, and Iframes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment_content (rendered inline into the page HTML)' parameter in all versions up to, and including, 2.4.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress core's wp_kses_data allow-list does not strip the crafted payload on save because it uses only permitted tags and attributes; the event handler is concealed inside a broken attribute region and is only promoted to a real DOM attribute by the plugin's render-time str_replace transformation. Additionally, a site administrator must approve the crafted comment before the payload is served to other visitors.

## Remediation

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