Quick answers
- Is CVE-2016-20069 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2016-20069 being exploited in the wild.
- How severe is CVE-2016-20069?
- High severity, with a CVSS score of 8.2, published 15 June 2026.
- Which products and versions are affected?
- CodePeople Booking Calendar Contact Form <= 1.0.23.
- Is there a fix for CVE-2016-20069?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2016-20069 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2016-20069?
- Check whether you run CodePeople Booking Calendar Contact Form at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The Booking Calendar Contact Form plugin for WordPress (up to version 1.0.23) is vulnerable to unauthenticated blind SQL injection. The flaw exists in the 'dex_bccf_get_option' and 'dex_bccf_filter_content' functions, where the 'calendar' parameter (and associated 'id' parameter in AJAX requests) is used in a SQL query without proper sanitization. An attacker can exploit this by sending specially crafted HTTP GET requests to the admin-ajax.php endpoint or by manipulating shortcode attributes. This allows for the execution of arbitrary SQL commands, enabling the extraction of sensitive data from the WordPress database. While the vulnerability was identified in 2016, it was officially assigned a CVE and published in NVD in 2026.
Affected products
- CodePeople (DWBooster) Booking Calendar Contact Form <= 1.0.23
Timeline
- 2016-02-08: disclosed: Initial discovery and exploit published by i0 SEC-LABORATORY
- 2026-06-15: advisory: CVE published to NVD dataset