Vulnerability Database

313,825

Total vulnerabilities in the database

CVE-2021-27821

The Web Interface for OpenWRT LuCI version 19.07 and lower has been discovered to have a cross-site scripting vulnerability which can lead to attackers carrying out arbitrary code execution.

  • Published: May 25, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-27821
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.1
  • AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:N/I:P/A:N

CWEs:

OWASP TOP 10:

Software From Fixed in
openwrt / luci - 19.07.0.x