---
id: "CVE-2026-119516"
page: "https://infrastack.ai/live/CVE-2026-119516"
kind: "vulnerability"
aliases: ["CVE-2026-119516"]
title: "WordPress Radius Booking plugin: untrusted data deserialization lets attackers inject objects"
severity: "critical"
cvss: 9.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "php", "radius-booking", "wordpress"]
not_affected_if: ["plugin-not-installed"]
published_at: "2026-11-06T08:17:19+00:00"
first_seen_at: "2026-11-06T08:40:33+00:00"
updated_at: "2026-11-06T08:42:22+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119516", "first_seen_at": "2026-11-06T08:40:33+00:00"}]
exploit_sources: []
---

# WordPress Radius Booking plugin: untrusted data deserialization lets attackers inject objects

Link for people: https://infrastack.ai/live/CVE-2026-119516 (this .md is for agents)

The Radius Booking WordPress plugin deserializes untrusted input, a flaw known as PHP object injection. An attacker who can reach it may be able to run code or alter data on the site, depending on the classes available.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check whether the `radius-booking` plugin is installed and its version in the WordPress admin plugin list
- Compare the installed version against `1.0.20`, the last affected version named in the advisory

## Fix

- Move the Radius Booking plugin to a version later than `1.0.20`; the sources do not name the exact fixed release

## Timeline

- 2026-11-06T08:40:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119516

## From the sources

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

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_