Vulnerability Database

309,540

Total vulnerabilities in the database

CVE-2021-47663

Due to improper JSON Web Tokens implementation an unauthenticated remote attacker can guess a valid session ID and therefore impersonate a user to gain full access.

  • Published: Apr 24, 2025
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-47663
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.1
  • AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H