Vulnerability Database

308,485

Total vulnerabilities in the database

CVE-2020-21524

There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing other blogs in the background(/api/admin/migrations/wordpress) needs to parse the xml file, but it is not used for security defense, This vulnerability can detect the intranet, read files, enable ddos attacks, etc. exp:https://github.com/halo-dev/halo/issues/423

  • Published: Sep 30, 2020
  • Updated: Nov 16, 2025
  • CVE: CVE-2020-21524
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.1
  • AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.4
  • AV:N/AC:L/Au:N/C:P/I:N/A:P

CWEs:

OWASP TOP 10:

Software From Fixed in
halo / halo 1.1.3 1.1.3.x