SB2023113054 - SQL injection in My Calendar WordPress plugin

Description

This security bulletin contains information about 1 security vulnerability.

1) SQL injection (CVE-ID: CVE-2023-6360)

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Exploitation example:

https://WORDPRESS_INSTANCE/?rest_route=/my-calendar=/my-calendar/v1/events&from=1'+AND+(SELECT+1+FROM+(SELECT(SLEEP(5)))a)+AND+'a'%3d'a

Remediation

Install update from vendor's website.

References

• https://www.tenable.com/security/research/tra-2023-40
• https://www.joedolson.com/2023/11/my-calendar-3-4-22-security-release/