Unauthorized Access Vulnerability in Appointment Booking Plugin for WordPress
CVE-2026-105198

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Appointment Booking Plugin
Vendor
CVE Published:
8 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-105198?

The Appointment Booking Plugin for WordPress prior to version 5.7.3 contains an improper authentication vulnerability. This flaw allows unauthenticated users to access sensitive customer information such as names, contact details, and order confirmation codes by manipulating the order-item identifier. As a result, attackers can exploit this issue to retrieve any customer's data without authorization, posing significant privacy risks to users.

Affected Version(s)

Appointment Booking Plugin 0 < 5.7.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-105198 - Proof of Concept

References

https://wpscan.com/vulnerability/736056ca-5825-4cb7-8775-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Vũ Quang Huy
WPScan
.