CVE-2026-11866

MEDIUM

Appointment Booking Plugin < 5.6.3 - Cross-Site Request Forgery

Title source: manual
STIX 2.1

Description

The Appointment Booking Plugin WordPress plugin before 5.6.3 does not validate a CSRF nonce on several state-changing actions handled by its central request dispatcher, allowing attackers to perform privileged actions, such as overwriting the booking-form configuration or disconnecting the connected payment gateway, via Cross-Site Request Forgery against a logged-in administrator.

References (1)

Core 1
Core References
Exploit exploit vdb-entry technical-description
https://wpscan.com/vulnerability/84e936b8-1978-4dc3-aa40-5ce49bfdc445/

Scores

CVSS v3 5.4
EPSS 0.0009
EPSS Percentile 0.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-352
Status published
Products (1)
None/Appointment Booking Plugin < 5.6.3
Published Jul 16, 2026
Tracked Since Jul 16, 2026