SEPTEMBER 19, 2026
Live Feed
Back to database
Case File

CVE-2026-13358

MEDIUM · CVSS 6.5 EPSS 0.48% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-16 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

The Appointment Booking Calendar plugin for WordPress is vulnerable due to an Insecure Direct Object Reference, allowing authenticated attackers with contributor-level access to access and manipulate appointment records of other users. This exploit can lead to unauthorized retrieval of sensitive personal information, including names, emails, and phone numbers. WordPress site administrators using this plugin should prioritize patching to mitigate the risk of data breaches and protect user privacy.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-13358
Severity
MEDIUM
CVSS
6.5
EPSS
0.48%
WordPress

Original NVD Description

The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.6.12.10 via the ssa_past_appointments due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with contributor-level access and above, to access appointment records belonging to arbitrary users and harvest the per-appointment ownership tokens (32-character hashes) embedded in the rendered HTML, which can then be used without any authentication to read or modify those appointments including full customer PII such as name, email, phone number, and private notes. The /wp-json/ssa/v1/render-shortcode REST endpoint is registered unconditionally on rest_api_init regardless of whether the Divi theme is installed, and its permission callback only requires current_user_can('edit_posts'), meaning any Contributor-level account is sufficient to trigger this entire exploit chain.