CVE-2016-20069CWE-89

WordPress Booking Calendar Contact Form 1.0.23 SQL Injection

High · published June 15, 2026

CVSS v4.0
8.8
EPSS
0%
Percentile
14.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.8 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00240 · 14.2th percentile
Weakness
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Published
2026-06-15T12:00Z
EPSS history
Timeline
  • 15 JUN 12:00Z
    WordPress Booking Calendar Contact Form 1.0.23 SQL Injection
    cvelistv5