#VU25777 CSV Injection in Appointment Booking Calendar - CVE-2020-9372
Published: March 5, 2020
Vulnerability identifier: #VU25777
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2020-9372
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
Appointment Booking Calendar
Appointment Booking Calendar
Software vendor:
CodePeople
CodePeople
Description
The vulnerability allows a remote attacker to inject arbitrary code into CSV files.
The vulnerability exists due to insufficient sanitization of user-supplied data when constructing CSV files in fields such as Description or Name in any booking form. A remote attacker can inject malicious data into the contact form fields that is used later by the plugin to generate CSV files. Such files can be opened with Microsoft Excel built-in functions and utilize its functionality to execute malicious macros.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.