Vulnerability · Published Feb 18, 2026 · Assigned by Wordfence
CVE-2026-1640Taskbuilder <= 5.0.2 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Project/Task Comment Creation
Medium 4.3
In plain English
A medium-severity missing authorization in Taskbuilder – Project Management & Task Management Tool With Kanban Board from taskbuilder. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Official description
The Taskbuilder – WordPress Project Management & Task Management plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.0.2. This is due to missing authorization checks on the project and task comment submission functions (AJAX actions: wppm_submit_proj_comment and wppm_submit_task_comment). This makes it possible for authenticated attackers, with subscriber-level access and above, to create comments on any project or task (including private projects they cannot view or are not assigned to), and inject arbitrary HTML and CSS via the insufficiently sanitized comment_body parameter.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| taskbuilder | Taskbuilder – Project Management & Task Management Tool With Kanban Board | 0 – through 5.0.2 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/66095908-875f-486d-ae77-6015671872de?source=cve
- https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.2/includes/admin/projects/open_project/wppm_submit_project_comment.php#L6
- https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.2/includes/admin/tasks/open_task/wppm_submit_task_comment.php#L6