CVE-2016-20069: Security Advisory

CVE: CVE-2016-20069 CVSS 8.2

CVE-2016-20069 is a high-severity vulnerability (CVSS 8.2).

Summary

WordPress Booking Calendar Contact Form 1.0.23 contains an unauthenticated blind SQL injection vulnerability in the shortcode function that fails to sanitize the calendar parameter before using it in database queries. Attackers can inject SQL commands through the calendar shortcode parameter to execute arbitrary SQL queries and extract sensitive database information.

Remediation

Apply the vendor’s update during your next patch window and verify exposure. Patch-management tools that can deploy and verify the fix include Action1, Automox, ManageEngine Patch Manager Plus, ManageEngine Endpoint Central. See our best patch management ranking.

Sources

Data as of June 16, 2026. Sources: nvd.nist.gov, wordpress.dwbooster.com, exploit-db.com, vulncheck.com. Figures are pulled from public vendor and security data and refreshed automatically.