CVE-2025-11764 MEDIUM

CVE-2025-11764: Shortcodes Bootstrap <= 1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

Vendor Fastmover
Product Shortcodes Bootstrap
Weakness CWE-79 · XSS
Published November 21, 2025
Last update April 8, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

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