What the vulnerability does
01Description
The WP Shortcodes Plugin - Shortcodes Ultimate plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 7.4.7. This is due to insufficient input sanitization and output escaping in the 'src' attribute of the su_lightbox shortcode. 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 Ultimate versions up to 7.4.7 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts into shortcode parameters that execute in other users' browsers, including administrators. The vulnerability affects the site's scope, potentially compromising user sessions and data.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers when they view pages containing the affected shortcodes.
Potential impact on your site
04Site Impact
Attackers with contributor+ access can steal admin sessions, modify site content, or harvest user data without triggering alerts.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., contributor or author role) and network access to the site.
Key dates
06Disclosure timeline
April 4, 2026
CVE published
April 8, 2026
Record updated
