CVE-2026-0742 Cross-site scripting in Smart Appointment & Booking
Authenticated attackers can inject arbitrary web scripts via the AJAX action, leading to stored XSS execution for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0742?
CVE-2026-0742 is a medium-severity cross-site scripting vulnerability in zealopensource Smart Appointment & Booking, published on 4 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-0742?
How do I fix CVE-2026-0742?
No fix has been published for CVE-2026-0742 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-0742 being exploited?
There is no known exploitation of CVE-2026-0742 in the wild and no public exploit code.
Sources
Also known as GHSA-m5qq-vwgp-rggp.