What the vulnerability does
01Description
The Smart Appointment & Booking plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the saab_save_form_data AJAX action in all versions up to, and including, 1.0.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Subscriber-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
Smart Appointment & Booking versions 1.0.7 and earlier contain a cross-site scripting (XSS) vulnerability. An attacker with low-level user access can inject malicious scripts that execute in other users' browsers, potentially stealing session tokens or performing actions on their behalf. The vulnerability affects the entire application scope due to changed scope conditions.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers to steal data or perform unauthorized actions.
Potential impact on your site
04Site Impact
Users' sessions and data are at risk; attackers can impersonate users and modify site content or settings.
Conditions required to exploit
05Prerequisites
Attacker needs a low-privilege user account; no user interaction required from the victim.
Key dates
06Disclosure timeline
February 4, 2026
CVE published
April 8, 2026
Record updated
