---
id: "CVE-2026-121612"
page: "https://infrastack.ai/live/CVE-2026-121612"
kind: "vulnerability"
aliases: ["CVE-2026-121612"]
title: "WPBruiser WordPress captcha plugin allows authentication abuse through weak checks"
severity: "medium"
cvss: 4.3
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["goodbye-captcha", "other", "wordpress", "wpbruiser"]
not_affected_if: []
published_at: "2026-11-09T17:17:15+00:00"
first_seen_at: "2026-11-09T17:27:38+00:00"
updated_at: "2026-11-09T17:29:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121612", "first_seen_at": "2026-11-09T17:27:38+00:00"}]
exploit_sources: []
---

# WPBruiser WordPress captcha plugin allows authentication abuse through weak checks

Link for people: https://infrastack.ai/live/CVE-2026-121612 (this .md is for agents)

WPBruiser (goodbye-captcha), a WordPress anti-spam captcha plugin by WPZOOM, has a weak authentication flaw. The sources say it allows authentication abuse, which likely means an attacker can get around the login or captcha check.

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

## How to check

- Check the installed WPBruiser / goodbye-captcha plugin version in the WordPress admin under Plugins.

## Fix

- WPBruiser / goodbye-captcha: fixed version unknown; the sources say the issue affects versions through `3.6.2`.

## Timeline

- 2026-11-09T17:27:38+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121612

## From the sources

Weak Authentication vulnerability in WPZOOM WPBruiser {no- Captcha anti-Spam} goodbye-captcha allows Authentication Abuse.This issue affects WPBruiser {no- Captcha anti-Spam}: from n/a through 3.6.2.

---

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