medium5.3
CVE-2026-86838
The Bookly WordPress plugin before 28.3 does not validate client-supplied booking quantity values on the server before computing the appointment total, allowin…
Impact
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 products
| Product | Affected versions |
|---|---|
| Bookly WordPress Plugin | before 28.3 |
Versions were read from the advisory text. No structured product data has been published for this record yet.