Server-Side Request Forgery (SSRF) Affecting adminer package, versions <4.7.9-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Attacked
EPSS
90.46% (100th percentile)

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  • Snyk IDSNYK-ECHOLATEST-ADMINER-18066763
  • published21 Jul 2026
  • disclosed11 Feb 2021

Introduced: 11 Feb 2021

CVE-2021-21311  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade Echo:latest adminer to version 4.7.9-1 or higher.

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 is an open-source database management in a single PHP file. In adminer from version 4.0.0 and before 4.7.9 there is a server-side request forgery vulnerability. Users of Adminer versions bundling all drivers (e.g. adminer.php) are affected. This is fixed in version 4.7.9.

CVSS Base Scores

version 3.1