CVE-2026-76586
BookingPress 1.5.6 - 1.6.2 - Unauthenticated Booking Price Manipulation via PayPal Payment Confirmation
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
BookingPress 1.5.6 - 1.6.2 - Unauthenticated Booking Price Manipulation via PayPal Payment Confirmation
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.
- Record
CVE-2026-76586- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
EUVDEUVD-2026-68053
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.
- Record
EUVD-2026-68053- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-h9qm-hc3c-qpr3
The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin before 1.6.3 does...
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.
- Record
GHSA-h9qm-hc3c-qpr3- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-76586- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-76586 is a high vulnerability (CVSS 7.5) in Unknown Appointment Booking Calendar Plugin And Scheduling Plugin, published August 29, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 29th percentile. No source names a fixed version.