Appointment Deletion Flaw in Bookit Booking & Appointment Calendar Plugin by WordPress
CVE-2026-89007

2.7LOW

Key Information:

Vendor

WordPress
Status
Bookit — Booking & Appointment Calendar
Vendor
CVE Published:
18 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-89007?

The Bookit — Booking & Appointment Calendar WordPress plugin, prior to version 2.6.0.5, contains a critical flaw that permits users assigned the low-privileged custom Staff role to delete any appointment without proper capability checks. This deficiency can lead to unauthorized removal of important booking data, presenting a serious risk to organizations relying on this plugin for scheduling. Proper implementation of capability checks is essential to safeguard against such vulnerabilities.

Affected Version(s)

Bookit — Booking & Appointment Calendar 0 < 2.6.0.5

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-2026-89007 - Proof of Concept

References

https://wpscan.com/vulnerability/5e174229-a375-456c-b651-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
2.7
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

hieus
WPScan
.