CVE-2026-94104 NivoCart through 2.4.0 Arbitrary File Upload RCE via filemanager
Attackers with back-office view access can upload PHP files to execute remote code due to missing extension validation in the file manager.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-94104?
CVE-2026-94104 is a high-severity vulnerability in nivocart, published on 20 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-434
Which versions are affected by CVE-2026-94104?
How do I fix CVE-2026-94104?
No fix has been published for CVE-2026-94104 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-94104 being exploited?
There is no known exploitation of CVE-2026-94104 in the wild and no public exploit code.
Sources
Also known as GHSA-m76p-p4wh-76x9.