What the vulnerability does
01Description
The Shortcodes Bootstrap plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'type' parameter in the [notification] shortcode in all versions up to, and including, 1.1. This is due to missing input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
02Summary
Shortcodes Bootstrap versions 1.1 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has a changed scope, meaning injected code can affect other users and site functionality. An attacker with low-level account access can craft malicious shortcode input that executes in other users' browsers.
What an attacker can do
03Attacker Capabilities
Inject JavaScript that runs in other users' browsers and affects site functionality.
Potential impact on your site
04Site Impact
Authenticated users can inject malicious scripts affecting other visitors and site operations.
Conditions required to exploit
05Prerequisites
Attacker needs a low-privilege account (e.g., contributor or subscriber role) on the site.
Key dates
06Disclosure timeline
November 21, 2025
CVE published
April 8, 2026
Record updated