high8.8
CVE-2026-56702
Adminer versions before 5.4.3 contain an unrestricted file upload vulnerability in the AdminerFileUpload plugin that allows authenticated users to upload PHP f…
Impact
Adminer versions before 5.4.3 contain an unrestricted file upload vulnerability in the AdminerFileUpload plugin that allows authenticated users to upload PHP files by exploiting a permissive default extension allowlist. Attackers can upload PHP webshells to columns ending in _path and execute arbitrary code as the web-server user when uploadPath is web-served.
Affected products
| Product | Affected versions |
|---|---|
| Adminer | before 5.4.3 |
Versions were read from the advisory text. No structured product data has been published for this record yet.