CVE-2026-1278

Description

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.

References

• https://downloads.wordpress.org/plugin/mandatory-fields.1.6.8.zip
• https://plugins.trac.wordpress.org/browser/mandatory-fields/tags/1.6.8/mandatory-plugin-option-page.php#L14
• https://plugins.trac.wordpress.org/browser/mandatory-fields/trunk/mandatory-plugin-option-page.php#L14
• https://wordpress.org/plugins/mandatory-fields/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/e262ec15-420a-4f52-90e0-e4a2e28402a1?source=cve