Risk Letters

Exploited vulnerability

CVE-2021-21311

TLP:CLEAR

Adminer Server-Side Request Forgery Vulnerability

Adminer contains a server-side request forgery vulnerability that, when exploited, allows a remote attacker to obtain potentially sensitive information.

Facts

  • Vendor: Adminer
  • Product: Adminer
  • CVSS: 7.2
  • EPSS (probability of exploitation within 30 days): 98.5 %
  • On CISA's Known Exploited Vulnerabilities list since: 29 September 2025
  • First known exploitation: 29 September 2025
  • CISA's deadline for US federal agencies: 20 October 2025
  • Weakness: CWE-918
  • First seen by Risk Letters: 29 September 2025

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD