# CVE-2026-112067: TYPO3 Accessible Form Captcha CAPTCHA bypass in bw_captcha

Source: https://junglewise.ai/threats/cve-2026-112067-the-extension-hides-the-correct-answer-to-each-captcha-inside  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-112067 · Severity: info · Published 2026-10-20

The Accessible Form Captcha extension for TYPO3 embeds the correct answer to each CAPTCHA challenge directly in the image data itself. An attacker can extract the answer from the image and submit it to bypass the CAPTCHA protection, allowing automated bots to pass security challenges that protect web forms from abuse.

Vendors: [Typo3](https://junglewise.ai/threats/vendors/typo3).

## Quick answers

**Is CVE-2026-112067 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-112067 being exploited in the wild.

**How severe is CVE-2026-112067?** Informational severity, published 20 October 2026.

**Which products and versions are affected?** Typo3 Accessible Form Captcha 4.0.0 - 5.4.1.

**Is there a fix for CVE-2026-112067?** Yes: fixed in 5.4.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-112067 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-112067?** Check whether you run Typo3 Accessible Form Captcha at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 5.4.2

## Technical details

The extension encodes the CAPTCHA answer within the image data itself and enables audio features by default, which causes the answer to be embedded. Any attacker who can request a CAPTCHA image can read the answer and submit it programmatically, bypassing the challenge entirely. The vulnerability affects versions 4.0.0 through 5.4.1 and is fixed in version 5.4.2.

## Affected products

- TYPO3 Accessible Form Captcha 4.0.0 - 5.4.1

## Timeline

- 2026-10-20: disclosed

## References

- [https://packagist.org/](https://packagist.org/)
- [https://typo3.org/security/advisory/typo3-ext-sa-2026-030](https://typo3.org/security/advisory/typo3-ext-sa-2026-030)