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WP Simple HTML Sitemap allows malicious code to be injected into website
CVE-2026-39654
Summary
The WP Simple HTML Sitemap plugin has a security issue that allows attackers to inject malicious code into a website. This can happen when a user visits a website that has this plugin installed and is viewed in a web browser. To fix this, update the plugin to version 3.9 or later.
Original title
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ashish Ajani WP Simple HTML Sitemap wp-simple-html-sitemap allows DOM-Based XSS.This issue affe...
Original description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ashish Ajani WP Simple HTML Sitemap wp-simple-html-sitemap allows DOM-Based XSS.This issue affects WP Simple HTML Sitemap: from n/a through <= 3.8.
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
Published: 8 Apr 2026 · Updated: 10 Apr 2026 · First seen: 8 Apr 2026