Vulnerability Database

309,587

Total vulnerabilities in the database

CVE-2021-39343

The MPL-Publisher WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/libs/PublisherController.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 1.30.2. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

  • Published: Oct 19, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-39343
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

CVSS v2:

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