---
id: CVE-2026-119516
title: >-
  WordPress Radius Booking — Booking Calendar for Appointments & Services plugin
  <= 1.0.20 - PHP Object Injection vulnerability
summary: >-
  Deserialization of Untrusted Data vulnerability in Mamunur Rashid Radius
  Booking — Booking Calendar for Appointments &amp; Services radius-booking
  allows Object Injection.This issue affects Radius Booking — Booking Calendar
  for Appointme…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-502
vendor: Mamunur Rashid
product: radius-booking
affected:
  - radius-booking <= 1.0.20
published: '2026-11-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T08:00:31.536Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119516'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/radius-booking/vulnerability/wordpress-radius-booking-booking-calendar-for-appointments-services-plugin-1-0-20-php-object-injection-vulnerability?_s_id=cve
tags:
  - cve.org
ingestedAt: '2026-11-06T08:48:01.704Z'
epss: 0.00386
epssPercentile: 0.32948
---

## Overview

Deserialization of Untrusted Data vulnerability in Mamunur Rashid Radius Booking — Booking Calendar for Appointments &amp; Services radius-booking allows Object Injection.This issue affects Radius Booking — Booking Calendar for Appointments &amp; Services: from n/a through 1.0.20.

## Affected

- `radius-booking <= 1.0.20`

## Remediation

Update the WordPress Radius Booking — Booking Calendar for Appointments &amp; Services plugin to the latest available version (at least 1.0.21).