Coverage › CVE-2021-21311
CVE-2021-21311 Unmapped
Adminer Server-Side Request Forgery Vulnerability
- Vendor / product
- Adminer — Adminer
- Description (CISA)
- Adminer contains a server-side request forgery vulnerability that, when exploited, allows a remote attacker to obtain potentially sensitive information.
- Added to KEV
- 2025-09-29 — after the latest CTID mapping snapshot (2025-07-28)
- Due date
- 2025-10-20
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Known ransomware use
- Unknown
- CWE
- CWE-918
- CISA notes
- https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6
https://nvd.nist.gov/vuln/detail/CVE-2021-21311 - Elsewhere
- cve.org · NVD · CISA KEV · JSON
ATT&CK techniques
No public source states how this vulnerability is exploited in ATT&CK terms.
The only authoritative CVE → ATT&CK mapping in the open — CTID's Mappings Explorer, pinned to a KEV snapshot of 2025-07-28 and ATT&CK 16.1 — does not include CVE-2021-21311. This entry was added to KEV on 2025-09-29, after that snapshot; of the 283 entries added since, 0 have a mapping. CISA's catalogue carries no technique field. kevmap does not infer techniques from the CWE (CWE-918) — here is why — and does not guess.
This page will change state automatically if a mapping is published. What is shown above is everything CISA publishes about the entry.