CVE-2025-39413 MEDIUM

CVE-2025-39413: WordPress Simple Sitemap – Create a Responsive HTML Sitemap plugin <= 3.6.0 - Broken Access Control vulnerability

Vendor David Gwyer
Product Simple Sitemap – Create a Responsive HTML Sitemap
Weakness CWE-862 · Missing authorization
Published April 30, 2025
Last update April 28, 2026

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

Missing Authorization vulnerability in David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap simple-sitemap.This issue affects Simple Sitemap – Create a Responsive HTML Sitemap: from n/a through <= 3.6.0.

Explanation of Vulnerability in Simple Terms

02Summary

Simple Sitemap versions 3.6.0 and earlier lack proper authorization checks on certain administrative functions. A logged-in user with low privileges can modify sitemap settings or content without proper permission validation. The vulnerability requires an active user account but does not require administrator access.

What an attacker can do

03Attacker Capabilities

Modify sitemap settings or content without proper authorization.

Potential impact on your site

04Site Impact

Unauthorized users can alter your sitemap configuration, potentially affecting site navigation and SEO.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site.

Key dates

06Disclosure timeline

April 30, 2025 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE