High severity · published Jun 15, 2026
CVE-2016-20069
WordPress Booking Calendar Contact Form 1.0.23 SQL Injection
8.2
CVSS
0.2%
EPSS
No
On KEV
Description
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BC
Booking Calendar Contact Form · dwbooster
through 1.0.23 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-20069
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-20069
wordpress.dwbooster.com
http://wordpress.dwbooster.com/
www.exploit-db.com
https://www.exploit-db.com/exploits/39423
www.vulncheck.com
https://www.vulncheck.com/advisories/wordpress-booking-calendar-contact-form-sql-injection-2
More from Booking Calendar Contact Form
8.2
CVE-2016-20068
WordPress Booking Calendar Contact Form 1.0.23 SQL Injection
6.4
CVE-2016-20070
WordPress Booking Calendar Contact Form 1.0.23 Privilege Escalation Stored XSS