Bookly < 28.3 - Staff+ Appointment and Payment Disclosure, Modification and Deletion via IDOR
The Online Scheduling and Appointment Booking System WordPress plugin before 28.3 does not verify that appointment and payment records requested through its staff-role AJAX actions belong to the requesting staff member, allowing authenticated attackers with a staff-level account to view, modify and delete other staff members' appointments and payments, including the associated customer's personal information.
CVE-2026-86839
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-86839
Online Scheduling and Appointment Booking System
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Unknown",
"product": "Online Scheduling and Appointment Booking System",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "28.3",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-86839
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #2465 · Revision 1
- Added to Heist Feed
- Publisher date