---
id: CVE-2026-14854
title: >-
  The WooCommerce Bookings WordPress plugin before 3.11.0 does not limit a
  user-supplied value before using it to allocate memory in one of its
  unauthenticated AJAX actions, allowing unauthenticated attackers to exhaust
  server memory and c…
summary: >-
  The WooCommerce Bookings WordPress plugin before 3.11.0 does not limit a
  user-supplied value before using it to allocate memory in one of its
  unauthenticated AJAX actions, allowing unauthenticated attackers to exhaust
  server memory and c…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
published: '2026-10-11'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T12:16:53.557'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-14854'
references:
  - url: 'https://wpscan.com/vulnerability/7b6aeaed-7600-4cf9-ba43-8a6fefb1a244/'
    label: contact@wpscan.com
tags:
  - nvd
ingestedAt: '2026-10-11T08:44:24.713Z'
epss: 0.00156
epssPercentile: 0.04218
---

## Overview

The WooCommerce Bookings WordPress plugin before 3.11.0 does not limit a user-supplied value before using it to allocate memory in one of its unauthenticated AJAX actions, allowing unauthenticated attackers to exhaust server memory and cause a Denial of Service with a single request.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.