CVE-2026-22355 HIGH

CVE-2026-22355: WordPress Simple XML Sitemap plugin <= 1.3 - CSRF to Stored XSS vulnerability

Vendor Gregmolnar

Product Simple XML Sitemap

Weakness CWE-352 · CSRF

Published January 22, 2026

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Cross-Site Request Forgery (CSRF) vulnerability in gregmolnar Simple XML Sitemap simple-xml-sitemap allows Stored XSS.This issue affects Simple XML Sitemap: from n/a through <= 1.3.

Explanation of Vulnerability in Simple Terms

02Summary

Simple XML Sitemap versions 1.3 and earlier are vulnerable to cross-site request forgery (CSRF) attacks. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without their knowledge. The attack requires the victim to visit the attacker's page while authenticated to the WordPress site. This can lead to unauthorized changes to site settings or content.

What an attacker can do

03Attacker Capabilities

Perform unwanted actions on the site by tricking an authenticated admin into visiting a malicious webpage.

Potential impact on your site

04Site Impact

An attacker can modify site settings or content if an admin visits a malicious link while logged in.

Conditions required to exploit

05Prerequisites

Victim must be logged in to WordPress and visit an attacker-controlled page; no special privileges required.

Key dates

06Disclosure timeline

January 22, 2026 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-22355 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/352.html

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