ClosedPatched

Adminer: Server-Side Request Forgery Vulnerability

Adminer

Adminer contains a server-side request forgery vulnerability that, when exploited, allows a remote attacker to obtain potentially sensitive information. Added to CISA KEV on 2025-09-29.

Why this severity: CVSS 7.2 (CNA, v3.1); actively exploited (CISA KEV)

Started: Sep 29, 2025
Closed: Sep 29, 2025
CVE: CVE-2021-21311

Follow this incident

Updated Sep 29, 2025

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Sep 29, 2025
CISA added CVE-2021-21311 to the KEV catalog (due 2025-10-20).

Advisories3

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. CVSS from the CVE record (cvelistV5). Exact affected/fixed version strings are not always in the KEV record; verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier; many entries are older CVEs newly confirmed as exploited in 2025).

Get an email when a new major security incident drops. No spam, unsubscribe any time.

Get notified