What the vulnerability does
01Description
Missing Authorization vulnerability in Auctollo Google XML Sitemaps google-sitemap-generator allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Google XML Sitemaps: from n/a through <= 4.1.22.
Explanation of Vulnerability in Simple Terms
02Summary
Google XML Sitemaps through version 4.1.22 lacks proper authorization checks, allowing unauthenticated attackers to modify sitemap data over the network. The vulnerability requires no user interaction and affects the integrity of sitemap content. Site administrators should update to a version newer than 4.1.22 to restore proper access controls.
What an attacker can do
03Attacker Capabilities
Modify sitemap content without authentication.
Potential impact on your site
04Site Impact
Attackers can alter your XML sitemaps, potentially affecting search engine indexing and SEO.
Conditions required to exploit
05Prerequisites
Network access; no authentication or user interaction required.
Key dates
06Disclosure timeline
December 16, 2025
CVE published
April 28, 2026
Record updated