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CVE-2021-21311 - Adminer Adminer

AI Vulnerability Context

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.

Overview

A source-backed snapshot of this vulnerability.

CISA KEVyesWhether CISA lists this as exploited.
Techniques0AI attack methods connected to this vulnerability.
Case studies0Examples where this vulnerability is mentioned.

Vulnerability status

How serious this vulnerability is and whether it is known to be exploited.

CISA KEVHIGH
CVE ID
CVE-2021-21311
Vendor/project
Adminer
Product
Adminer
Vulnerability name
Adminer Server-Side Request Forgery Vulnerability
Date added
2025-09-29
Due date
2025-10-20
Known ransomware campaign use
Unknown
CVSS v3
7.2
CWE-918

Exploit context

What the vulnerability is about.

No description available. The source record only contains identifiers and metadata.

Related AI techniques

AI attack methods connected to this vulnerability.

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No related AI attack methods. No AI attack method is connected to this vulnerability in the current data.

Related case studies

Examples where this vulnerability is mentioned.

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No related case studies. No case study currently mentions this vulnerability.

Source evidence

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Original source

Original source links

Open the public records and source datasets used for this page.

NVD CVE pagehttps://nvd.nist.gov/vuln/detail/CVE-2021-21311CVE API docshttps://nvd.nist.gov/developers/vulnerabilitiesData feedshttps://nvd.nist.gov/vuln/data-feedsCataloghttps://www.cisa.gov/known-exploited-vulnerabilities-catalogData repositoryhttps://github.com/cisagov/kev-dataaf854a3a-2127-422b-91ae-364da2661108https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351af854a3a-2127-422b-91ae-364da2661108https://github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdfaf854a3a-2127-422b-91ae-364da2661108https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/03/msg00002.htmlaf854a3a-2127-422b-91ae-364da2661108https://packagist.org/packages/vrana/adminer134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21311