CVE-2026-76586

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.

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS

0.21% chance of exploitation in the next 30 days, 11th percentile

Published

2026-08-29

Updated

2026-08-30

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/bc74bc9b-92ce-434e-a21d-34d7525c8600/

References

• CVE Record
• NVD entry

Related

• CVE-2026-76585
• CVE-2026-76589
• CVE-2026-76584
• CVE-2026-76590
• CVE-2026-76583
• CVE-2026-76591