CVE-2021-213117.2HighCWE-918

CVE-2021-21311: SSRF in adminer

vrana · adminer

Affected: vrana adminer · Exploitation: in CISA KEV since 29 Sep 2025

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

ExploitationIn CISA KEV

In CISA KEVCISA KEV catalogue29 Sep 2025
Exploited (reported): not seen
Scanning observed: not seen
Proof of concept public: not seen
Not established: not seen

98.5%probability of exploitation in the next 30 days

99th percentile

050100

Higher than 99% of scored CVEs

7.2HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

vrana · adminer>= 4.0.0, < 4.7.9

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.
CISA KEV: Listed since 29 Sep 2025 · catalogue entry
Public check: Adminer <4.7.9 - Server-Side Request Forgery · nuclei template in projectdiscovery/nuclei-templates
Weakness: Server-Side Request Forgery
Vendor: vrana
Published: February 2021
Band: Exploited in the wild, February 2021

What changed

29 Sep 2025
CISA added it to the KEV catalogue CISA

CoverageNo articles yet

No CyberSIXT article names CVE-2021-21311 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.