PT-2021-14409 · Adminer+2 · Adminer+2

Bpsizemore

+1

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Published

2021-02-11

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Updated

2026-03-23

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CVE-2021-21311

CVSS v3.1

7.2

High

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Name of the Vulnerable Software and Affected Versions: Adminer versions 4.0.0 through 4.7.9
Description: Adminer is an open-source database management in a single PHP file. There is a server-side request forgery vulnerability in Adminer versions bundling all drivers, such as adminer.php. This issue is fixed in version 4.7.9. Users of affected Adminer versions are at risk.
Recommendations: For versions 4.0.0 through 4.7.9, update to version 4.7.9 to resolve the issue. As a temporary workaround, consider using a single driver version, such as adminer-mysql.php, to minimize the risk of exploitation. Restrict access to Adminer by other means, such as HTTP password, IP address limiting, or by using the OTP plugin, until the issue is resolved.

Exploit

Fix

SSRF

Weakness Enumeration

Related Identifiers

BDU:2026-01118
CVE-2021-21311
DLA-2580-1
GHSA-X5R2-HJ5C-8JX6
USN-5271-1

Affected Products

Adminer
Linuxmint
Ubuntu