What’s Vulnerable › Vulnerabilities

CVE-2026-1278: Mandatory Field <= 1.6.8 - Authenticated (Administrator+) Stored Cross-Site Scripting via Settings Fields

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-21 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• ketanmujumdar Mandatory Field: through 1.6.8

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

Get alerted when CVE-2026-1278 or the next vulnerability affects your stack