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