Attack Chain

1. An unauthenticated attacker crafts a malicious request containing JavaScript code in the first_name parameter.
2. The attacker sends the crafted request to the WordPress server hosting the vulnerable LatePoint plugin.
3. The LatePoint plugin processes the request without proper sanitization of the first_name parameter.
4. The unsanitized input is stored in the WordPress database.
5. A user accesses a page that displays the stored data from the first_name field.
6. The malicious JavaScript code is executed in the user’s browser.
7. The attacker can potentially steal cookies, redirect the user to a malicious website, or deface the website.

Impact

Successful exploitation of this vulnerability can lead to a variety of negative consequences, including account compromise, defacement of the website, and the potential spread of malware to users. The vulnerability affects all users of the LatePoint plugin up to version 5.5.0. Given the popularity of WordPress and the LatePoint plugin, a large number of websites are potentially vulnerable.

Recommendation

• Upgrade the LatePoint – Calendar Booking Plugin for Appointments and Events to a version greater than 5.5.0 to patch CVE-2026-7448.
• Deploy the Sigma rule Detect LatePoint XSS Attempt to your SIEM to detect potential exploitation attempts.
• Monitor web server logs for suspicious requests containing JavaScript code in the first_name parameter.