# CVE-2026-111278: NivoCart CAPTCHA bypass in contact form

Source: https://junglewise.ai/threats/cve-2026-111278-nivocart-through-2-5-1-contains-a-captcha-bypass-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-15. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-111278 · Severity: medium · CVSS 5.3 · Published 2026-10-15

NivoCart is a shopping cart system that protects forms like contact pages and user registrations with CAPTCHA verification. This vulnerability allows attackers to bypass the CAPTCHA protection by extracting the expected response value from the HTML source code, enabling them to automate spam, fraudulent account creation, and malicious form submissions at scale.

Technologies: [NivoCart](https://junglewise.ai/threats/technologies/nivocart). Vendors: [NivoCart](https://junglewise.ai/threats/vendors/nivocart).

## Quick answers

**Is CVE-2026-111278 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111278 being exploited in the wild.

**How severe is CVE-2026-111278?** Medium severity, with a CVSS score of 5.3, published 15 October 2026.

**Which products and versions are affected?** NivoCart through 2.5.1.

**Is there a fix for CVE-2026-111278?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-111278 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-111278?** Check whether you run NivoCart 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.

## Technical details

The vulnerability exists because NivoCart exposes the CAPTCHA code as plain text within the HTML response sent to the client, allowing unauthenticated attackers to extract it via pattern matching. An attacker can fetch any protected form, parse the captcha_image value from the HTML, and resubmit it along with form data to bypass verification. This is a client-side validation weakness with no authentication requirement.

## Affected products

- NivoCart NivoCart through 2.5.1

## Timeline

- 2026-10-15: disclosed

## References

- [https://github.com/nivocart/nivocart](https://github.com/nivocart/nivocart)
- [https://github.com/nivocart/nivocart/blob/5bc2c3fc7caed9846b58959183f8ccf599cd4399/upload/catalog/controller/information/contact.php](https://github.com/nivocart/nivocart/blob/5bc2c3fc7caed9846b58959183f8ccf599cd4399/upload/catalog/controller/information/contact.php)

## Related threats

- [NivoCart missing authorization in order download](https://junglewise.ai/threats/cve-2026-111277-nivocart-through-2-5-1-contains-a-missing-authorization)
- [NivoCart password reset token prediction in forgotten.php](https://junglewise.ai/threats/cve-2026-94107-nivocart-through-2-4-0-contains-a-predictable-password-reset)
- [NivoCart admin password reset configuration write](https://junglewise.ai/threats/cve-2026-94105-nivocart-through-2-4-0-contains-a-destructive-configuration-write)
- [NivoCart arbitrary file upload in File Manager](https://junglewise.ai/threats/cve-2026-94104-nivocart-through-2-4-0-contains-an-arbitrary-file-upload)