CVE-2016-20069 PUBLISHED

WordPress Booking Calendar Contact Form 1.0.23 SQL Injection

Assigner: VulnCheck
Reserved: 14.06.2026 Published: 15.06.2026 Updated: 15.06.2026

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.

CVSS 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
CVSS Score: 8.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CVSS Score: 8.2

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	dwbooster
Product	Booking Calendar Contact Form
Versions	affected from 0 to 1.0.23 (incl.)

Credits

Joaquin Ramirez Martinez [ i0 SEC-LABORATORY ] finder

References

Problem Types

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') CWE