CVE-2026-103425: Booking Package <= 1.7.29 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'id' Shortcode Attribute
The Booking Package plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' parameter in all versions up to, and including, 1.7.29 due to insufficient 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.
Affected Software
Event History
Frequently Asked Questions
Which users can exploit this issue?
An attacker must be authenticated to WordPress with Contributor-level permissions or higher. No user interaction is required for the attacker to submit the malicious shortcode attribute.
When does the injected script execute?
The script is stored in a page through the shortcode's id attribute and executes when a user accesses that injected page. Users who view the affected page may be exposed to the script's actions in their browser.
Which versions are affected?
All Booking Package versions through and including 1.7.29 are affected. The provided data does not identify a fixed version.