---
id: "CVE-2026-127206"
page: "https://infrastack.ai/live/CVE-2026-127206"
kind: "vulnerability"
aliases: ["CVE-2026-127206"]
title: "WordPress Image CAPTCHA plugin: hardcoded answer lets bots pass contact forms"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["contact-form-7", "package", "self-hosted", "wordpress", "wpforms"]
not_affected_if: ["no-cf7-integration", "plugin-not-installed"]
published_at: "2026-11-12T21:17:22+00:00"
first_seen_at: "2026-11-12T21:40:31+00:00"
updated_at: "2026-11-12T21:42:23+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-127206", "first_seen_at": "2026-11-12T21:40:31+00:00"}]
exploit_sources: []
---

# WordPress Image CAPTCHA plugin: hardcoded answer lets bots pass contact forms

Link for people: https://infrastack.ai/live/CVE-2026-127206 (this .md is for agents)

Image CAPTCHA for Contact Form 7 and WPForms through version 3.3.29 has a hardcoded static answer in its Contact Form 7 integration. An unauthenticated attacker can submit the value kc_captcha=kc_human to pass the check on every protected form, letting automated spam through.

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

## How to check

- Look for the Image CAPTCHA plugin in the WordPress admin plugin list and note its version.
- Check whether Contact Form 7 or WPForms forms on the site use the Image CAPTCHA integration.

## Fix

- Image CAPTCHA for Contact Form 7 and WPForms: a fixed version is not stated in the sources; unknown.

## Timeline

- 2026-11-12T21:40:31+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-127206

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/image-captcha-for-contact-form-7-and-wpforms-captcha-bypass

## From the sources

Image CAPTCHA for Contact Form 7 and WPForms through 3.3.29 contains a CAPTCHA bypass vulnerability that allows unauthenticated attackers to defeat the anti-automation control by exploiting a hardcoded static answer in the Contact Form 7 integration. Attackers can submit kc_captcha=kc_human to pass validation in cf7ic_check_if_spam() on every protected form, enabling automated contact-form spam and abuse of actions gated only by this CAPTCHA.

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