CVE-2026-76586 BookingPress 1.5.6 - 1.6.2 - Unauthenticated Booking Price Manipulation via PayPal Payment Confirmation
Unauthenticated attackers can manipulate booking prices by bypassing payment verification, allowing them to secure appointments for a fraction of the cost.
- 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-2026-76586?
CVE-2026-76586 is a high-severity vulnerability in Unknown Appointment Booking Calendar Plugin and Scheduling Plugin, published on 29 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin before 1.6.3 does not verify the amount actually paid against the server-side price staged for a booking when confirming an online payment, allowing unauthenticated users to have a paid appointment approved for a fraction of its price.
Weakness: CWE-284
Which versions are affected by CVE-2026-76586?
How do I fix CVE-2026-76586?
No fix has been published for CVE-2026-76586 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76586 being exploited?
There is no known exploitation of CVE-2026-76586 in the wild and no public exploit code.
Sources
Also known as GHSA-h9qm-hc3c-qpr3.