CVE-2026-39694 MEDIUM

CVE-2026-39694: WordPress Simply Schedule Appointments plugin <= 1.6.10.2 - Broken Access Control vulnerability

Vendor Nsquared
Product Simply Schedule Appointments
Weakness CWE-862 · Missing authorization
Published April 8, 2026
Last update April 29, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through <= 1.6.10.2.

Explanation of Vulnerability in Simple Terms

02Summary

Simply Schedule Appointments versions 1.6.10.2 and earlier lack proper authorization checks, allowing unauthenticated attackers to modify appointment data over the network. The vulnerability does not expose sensitive information or disrupt service availability, but attackers can alter scheduling records without authentication or user interaction.

What an attacker can do

03Attacker Capabilities

Modify appointment data without logging in or user interaction.

Potential impact on your site

04Site Impact

Appointment records can be altered by anyone, potentially disrupting scheduling and customer trust.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user action required.

Key dates

06Disclosure timeline

April 8, 2026 CVE published
April 29, 2026 Record updated

Related vulnerabilities

08Related CVE