CVE-2026-1278: Ketanmujumdar Mandatory Field

Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days.

The Mandatory Field plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.6.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected products

• Ketanmujumdar Mandatory Field: up to and including 1.6.8

Published 2026-03-21. Last modified 2026-06-17.