Vulnerability Database

313,825

Total vulnerabilities in the database

CVE-2021-39202

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the Custom HTML feature. This leads to stored XSS in the custom HTML widget. This has been patched in WordPress 5.8. It was only present during the testing/beta phase of WordPress 5.8.

  • Published: Sep 9, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-39202
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.6
  • AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

CVSS v2:

  • Severity: Low
  • Score: 3.5
  • AV:N/AC:M/Au:S/C:N/I:P/A:N

CWEs:

OWASP TOP 10:

Software From Fixed in
WordPress / wordpress 5.8-beta2 5.8-beta2.x
WordPress / wordpress 5.8-beta1 5.8-beta1.x