---
id: CVE-2026-100518
title: >-
  Unauthenticated Broken Authentication in Advanced Google reCAPTCHA <= 5.40
  versions.
summary: >-
  Unauthenticated Broken Authentication in Advanced Google reCAPTCHA <= 5.40
  versions.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-288
vendor: WebFactory
product: advanced-google-recaptcha
affected:
  - advanced-google-recaptcha >= n/a <= 5.40
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T09:17:37.283'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100518'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/advanced-google-recaptcha/vulnerability/wordpress-advanced-google-recaptcha-plugin-5-40-broken-authentication-vulnerability?_s_id=cve
    label: audit@patchstack.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T08:50:17.467Z'
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-06T10:10:25.262382Z'
---

## Overview

Unauthenticated Broken Authentication in Advanced Google reCAPTCHA <= 5.40 versions.

## Remediation

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