CVE-2026-56702

highCVSS 8.8covered by 1 sourcefirst seen 2026-08-25

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.

⚡ Watch CVE-2026-56702

Get an email if CVE-2026-56702 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.

Advisory coverage (1)

highCVE-2026-56702: Adminer versions before 5.4.3 contain an unrestricted file upload vulnerability in the Adminer…nvd · 2026-08-25

External references

NVD record for CVE-2026-56702

CVE.org record

Embed the live status

— this badge updates automatically when the KEV or exploit status changes. How to embed it →

[![CVE-2026-56702 status](https://www.csirts.com/badge/CVE-2026-56702)](https://www.csirts.com/cve/CVE-2026-56702)