CVE-2026-56703Adminer before 5.4.3 Remote Code Execution via SQLite VACUUM INTO

Description

Adminer before 5.4.3 contains a remote code execution vulnerability in SQLite query handling where VACUUM INTO is not blocked despite ATTACH restrictions. Authenticated attackers can execute VACUUM INTO to write PHP code to arbitrary file paths and execute commands on the server.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• GitHub Security Advisory (GHSA-gmx3-g29w-77wf) vendor-advisory
• VulnCheck Advisory: Adminer before 5.4.3 Remote Code Execution via SQLite VACUUM INTO third-party-advisory