CVE-2026-94104
CVE-2026-94104
NivoCart through 2.4.0 contains an arbitrary file upload vulnerability in the File Manager multi() endpoint that fails to validate file extensions for new filenames or when chunks parameter is 2 or higher. Attackers with view-only back-office access can upload PHP files to the web-accessible image/data/ directory and execute them for remote code execution.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (52.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Weakness classification (CWE)
References
- github.com/nivocart/nivocart/issues/25 (issue-tracking)
- github.com/nivocart/nivocart/blob/6ea6600cda1263ae70c0aab0a70d31091a32c46b/uplo… (technical-description)
- github.com/nivocart/nivocart/blob/6ea6600cda1263ae70c0aab0a70d31091a32c46b/uplo… (technical-description)
- github.com/nivocart/nivocart (product)
- www.vulncheck.com/advisories/nivocart-through-2.4.0-arbitrary-file-upload-rce-v… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-94104?
- CVE-2026-94104 is a high-severity vulnerability, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-09-20.
- How severe is CVE-2026-94104?
- High severity. CVSS v3 base score is 8.8 out of 10.