CVE-2026-86838CWE-472

CVE-2026-86838

Medium · published September 28, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
11.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00217 · 11.5th percentile
Weakness
CWE-472 · External Control of Assumed-Immutable Web Parameter
Published
2026-09-28T11:17Z
References (1)
https://wpscan.com/vulnerability/1c8a53e7-5556-4dcb-a461-c6df253d0b7a/ · [email protected]
EPSS history
Timeline
  • 29 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 28 SEP 06:19Z
    Bookly < 28.3 - Unauthenticated Payment Bypass via Booking Price Manipulation
    cvelistv5