What the vulnerability does
01Description
The Surbma | Booking.com Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `surbma-bookingcom` shortcode in all versions up to, and including, 2.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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
The Surbma Booking.com Shortcode plugin versions 2.1 and earlier contain a cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, including site administrators. The vulnerability affects the entire site scope due to how the plugin processes shortcode parameters.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers, potentially stealing session tokens or admin credentials.
Potential impact on your site
04Site Impact
Authenticated users can compromise admin accounts and take control of your site without needing to exploit additional vulnerabilities.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account (e.g., subscriber or contributor role) on the site.
Key dates
06Disclosure timeline
April 14, 2026
CVE published
April 14, 2026
Record updated
