CVE-2026-56703

High

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.

SeverityHigh

CVSS7.2

Exploit probability—

Product

Vrana Adminer

PublishedAug 25, 2026

First seenAug 25, 2026

Weakness typeCWE-94Code injection

How to fix

Update

vrana adminer5.4.3 or later

Vendor advisories

github.com/vrana/adminer/security/advisories/GHSA-gmx3-g29w-77wf

Affected products

Product	Affected versions	Fixed in
vrana adminer	v < 5.4.3	5.4.3

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