CVE-2021-21311

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 v3 7.2 HIGH
CVSS v2.0 6.4 MEDIUM

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

6.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:N

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351	Patch
https://github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdf	Exploit Third Party Advisory
https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6	Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00002.html	Mailing List Third Party Advisory
https://packagist.org/packages/vrana/adminer	Product Third Party Advisory
https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351	Patch
https://github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdf	Exploit Third Party Advisory
https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6	Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00002.html	Mailing List Third Party Advisory
https://packagist.org/packages/vrana/adminer	Product Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21311	US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:adminer:adminer:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-02-11 21:15

Updated : 2025-10-24 14:48

NVD link : CVE-2021-21311

Mitre link : CVE-2021-21311

CVE.ORG link : CVE-2021-21311

JSON object : View

Products Affected

adminer

adminer

debian

debian_linux

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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