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CVE-2021-21311

7.2 highKEVEPSS 98%

High (7.2) in Adminer Adminer. In CISA KEV since 2025-09-29. EPSS 98% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.2 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS
98% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CISA KEV
listed 2025-09-29, due 2025-10-20
CWE
CWE-918
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON