CVE-2026-73395 Missing authorization in Booking calendar, Appointment Booking System
Unauthenticated attackers can access or modify appointment data via IDOR in the Booking calendar plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73395?
CVE-2026-73395 is a medium-severity missing authorization vulnerability in wpdevart Booking calendar, Appointment Booking System, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Unauthenticated Insecure Direct Object References (IDOR) in Booking calendar, Appointment Booking System <= 3.2.36 versions.
Weakness: CWE-639
Which versions are affected by CVE-2026-73395?
How do I fix CVE-2026-73395?
No fix has been published for CVE-2026-73395 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-73395 being exploited?
There is no known exploitation of CVE-2026-73395 in the wild and no public exploit code.
Sources
Also known as GHSA-wrj4-qvh9-mx4r.