CVE-2021-21311

SSRF in adminer

Published Feb 11, 2021 CVSS 3.1 · 7.2 High EPSS 98.5% KEV · Listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2580-1 adminer security update
Github GHSA Github GHSA GHSA-x5r2-hj5c-8jx6 SSRF in adminer
Ubuntu USN Ubuntu USN USN-5271-1 Adminer vulnerabilities
History
Type Values Removed Values Added
Metrics kev

{'dateAdded': '2025-09-29T00:00:00+00:00', 'dueDate': '2025-10-20T00:00:00+00:00'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 21, 2025, 11:35 PM
Reserved
Dec 22, 2020, 12:00 AM
Status
Analyzed
Published
Feb 11, 2021, 9:15 PM
Modified
Jun 17, 2026, 3:35 AM