CVE-2016-20068

WordPress Booking Calendar Contact Form version 1.0.23 contains an unauthenticated blind SQL injection vulnerability that allows remote attackers to execute arbitrary SQL queries by injecting malicious code through the 'id' parameter. Attackers can send requests to the admin-ajax.php endpoint with the action parameter set to 'dex_bccf_calendar_ajaxevent' and supply crafted SQL commands in the 'id' parameter to extract sensitive database information.

CVSS v4.0

8.8 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

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

EPSS

0.30% chance of exploitation in the next 30 days, 22th percentile

Published

2026-06-15

Updated

2026-07-15

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/39423

References

• CVE Record
• NVD entry

Related

• CVE-2016-20067
• CVE-2016-20069
• CVE-2016-20066
• CVE-2016-20070
• CVE-2016-20065
• CVE-2016-20071