dwbooster Booking Calendar Contact Form up to 1.0.23 Shortcode calendar sql injection

Summaryinfo

A vulnerability was found in dwbooster Booking Calendar Contact Form up to 1.0.23. It has been classified as critical. This impacts an unknown function of the component Shortcode Handler. The manipulation of the argument calendar leads to sql injection. This vulnerability is uniquely identified as CVE-2016-20069. The attack is possible to be carried out remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in dwbooster Booking Calendar Contact Form up to 1.0.23. It has been rated as critical. This issue affects an unknown code block of the component Shortcode Handler. The manipulation of the argument calendar with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE 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 weakness was disclosed by Joaquin Ramirez Martinez as 39423. It is possible to read the advisory at exploit-db.com. The identification of this vulnerability is CVE-2016-20069 since 06/14/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (39423). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Calendar Software

Vendor

• dwbooster

Name

• Booking Calendar Contact Form

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5
• 1.0.6
• 1.0.7
• 1.0.8
• 1.0.9
• 1.0.10
• 1.0.11
• 1.0.12
• 1.0.13
• 1.0.14
• 1.0.15
• 1.0.16
• 1.0.17
• 1.0.18
• 1.0.19
• 1.0.20
• 1.0.21
• 1.0.22
• 1.0.23

CPE 2.3info

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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