BookingPress Pro <= 5.6 - Unauthenticated Arbitrary File Upload via Signature Custom Field

9.8
Unrestricted Upload of File with Dangerous Type
CVE CVE-2026-6960
CVSS 9.8 (Critical)
Publicly Published May 21, 2026
Last Updated May 21, 2026
Researcher h0xilo

Description

The BookingPress Pro plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'bookingpress_validate_submitted_booking_form_func' function in all versions up to, and including, 5.6. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability can only be exploited if a signature custom field is added to the booking form.

Learn more about Arbitrary File Upload vulnerabilities and how to prevent them.

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Vulnerability Details for BookingPress Appointment Booking Pro

Software Type Plugin
Software Slug bookingpress-appointment-booking-pro
Patched? Yes
Remediation Update to version 5.7, or a newer patched version
Affected Version
  • <= 5.6
Patched Version
  • 5.7

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