Unrestricted Upload of File with Dangerous Type Affecting adminer package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.34% (27th percentile)

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  • Snyk IDSNYK-ECHOLATEST-ADMINER-19267483
  • published26 Aug 2026
  • disclosed25 Aug 2026

Introduced: 25 Aug 2026

NewCVE-2026-56702  (opens in a new tab)
CWE-434  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest adminer.

NVD Description

Note: Versions mentioned in the description apply only to the upstream adminer package and not the adminer package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1