# CVE-2026-94104: NivoCart arbitrary file upload in File Manager

Source: https://junglewise.ai/threats/cve-2026-94104-nivocart-through-2-4-0-contains-an-arbitrary-file-upload  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-20. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-94104 · Severity: high · CVSS 8.8 · Published 2026-09-20

NivoCart is an open-source shopping cart system that manages product catalogs and orders. The File Manager component fails to validate uploaded file extensions, allowing attackers with low-privilege back-office access to upload malicious PHP files to web-accessible directories and execute them, gaining complete control of the server.

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

## Quick answers

**Is CVE-2026-94104 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-94104 being exploited in the wild.

**How severe is CVE-2026-94104?** High severity, with a CVSS score of 8.8, published 20 September 2026.

**Which products and versions are affected?** NivoCart through 2.4.0.

**Is there a fix for CVE-2026-94104?** 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-2026-94104 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-94104?** 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 in the File Manager's multi() endpoint, which does not properly validate file extensions when processing file uploads, particularly when the chunks parameter is 2 or higher. Attackers with view-only back-office credentials can leverage this to upload PHP files to the image/data/ directory and execute arbitrary code with server privileges. A patch is available in versions after 2.4.0.

## Affected products

- NivoCart NivoCart through 2.4.0

## Timeline

- 2026-09-20: disclosed

## References

- [https://github.com/nivocart/nivocart](https://github.com/nivocart/nivocart)
- [https://github.com/nivocart/nivocart/blob/6ea6600cda1263ae70c0aab0a70d31091a32c46b/upload/admin/controller/common/filemanager.php](https://github.com/nivocart/nivocart/blob/6ea6600cda1263ae70c0aab0a70d31091a32c46b/upload/admin/controller/common/filemanager.php)

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