Vulnerability · Published Aug 25, 2026 · Assigned by VulnCheck

CVE-2026-34967Adminer sql-log Plugin 5.3.0 through 5.4.2 Arbitrary File Write

Medium 5.4

In plain English

A medium-severity security flaw in adminer from vrana. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 74.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Adminer versions 5.3.0 through 5.4.2 with the sql-log plugin enabled contain an arbitrary file write vulnerability in the ns parameter of plugins/sql-log.php. An authenticated user can supply path traversal sequences in the ns parameter to write arbitrary .sql files with attacker-controlled content to any writable directory on the host.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	adminer	no fix listed	DEBIAN-CVE-2026-34967
Debian:13	adminer	no fix listed	DEBIAN-CVE-2026-34967
Debian:14	adminer	5.4.3+dfsg-1	DEBIAN-CVE-2026-34967
Ubuntu:22.04:LTS	adminer	no fix listed	UBUNTU-CVE-2026-34967
Ubuntu:24.04:LTS	adminer	no fix listed	UBUNTU-CVE-2026-34967
Ubuntu:26.04:LTS	adminer	no fix listed	UBUNTU-CVE-2026-34967

Affected products (as reported)

Vendor	Product	Versions
vrana	adminer	5.3.0 – through 5.4.2

Weakness: CWE-73 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References

GitHub Security Advisory (GHSA-75xm-qwfq-9wp5) vendor-advisory
VulnCheck Advisory: Adminer sql-log Plugin 5.3.0 through 5.4.2 Arbitrary File Write third-party-advisory