vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-86838

Bookly < 28.3 - Unauthenticated Payment Bypass via Booking Price Manipulation

MEDIUM
5.3
CVSS Score
Published: September 28, 2026 at 06:19 AM UTC
Updated: September 28, 2026 at 04:38 PM UTC
1 product affected across 1 vendorBookly

Using Bookly by Unknown?

Get instant alerts when new vulnerabilities affect Bookly - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM5.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Bookly· Booklywordpress-plugin
60%
v < 28.3
Affected range stops below 28.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/1c8a53e7-5556-4dcb-a461-c6df253d0b7a/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMWPScan
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-472

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card