Vulnerability in latepoint Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress

[ Why it matters ]Priority signals

• Critical severity: CVSS 9.1

[ Description ]Official description

The The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.7.0. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. The payload is planted during the unauthenticated booking flow and triggered when the Customer Cabinet block rendered by render_customer_dashboard() outputs the stored name into the content stream, where WordPress core's do_shortcode filter at priority 11 re-parses and executes it.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• plugins.trac.wordpress.org/browser/latepoint/tags/5.7.0/lib/helpers/blocks_helper.php
• plugins.trac.wordpress.org/browser/latepoint/tags/5.7.0/lib/models/customer_model.php
• plugins.trac.wordpress.org/browser/latepoint/tags/5.7.0/lib/views/customer_cabinet/dash…
• plugins.trac.wordpress.org/browser/latepoint/tags/5.7.1/lib/helpers/blocks_helper.php
• www.wordfence.com/threat-intel/vulnerabilities/id/c9a030c0-6129-40b0-81da-4c420929d198