What the vulnerability does
01Description
The Mikado Core plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes in versions up to, and including, 1.5.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
02Summary
Mikado Core versions up to 1.5.2 contain a stored cross-site scripting (XSS) vulnerability that allows authenticated users with low privileges to inject malicious scripts. The vulnerability has changed scope, meaning injected code can affect other users and site functionality beyond the vulnerable component. An attacker needs a valid user account to exploit this flaw.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers and affect site functionality.
Potential impact on your site
04Site Impact
Authenticated users can inject persistent malicious code affecting other site visitors and admin functions.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account; no user interaction required from victims.
Key dates
06Disclosure timeline
September 9, 2025
CVE published
April 8, 2026
Record updated