CVE-2026-86838

Bookly < 28.3 - Unauthenticated Payment Bypass via Booking Price Manipulation

The Bookly WordPress plugin before 28.3 does not validate client-supplied booking quantity values on the server before computing the appointment total, allowing unauthenticated users to reduce the total to zero and book paid services for free while bypassing the payment step.

Affected

Bookly

CVSS v3.1 WPSCAN

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.22% chance of exploitation in the next 30 days, 11th percentile

Published

2026-09-28

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/1c8a53e7-5556-4dcb-a461-c6df253d0b7a/

References

• CVE Record
• NVD entry