Medium 4.3Published Feb 18, 2026

CVE-2026-1640Taskbuilder <= 5.0.2 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Project/Task Comment Creation

Updated under an hour ago (Oct 26, 2026, 5:20 PM ET)

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It affects Taskbuilder – Project Management & Task Management Tool With Kanban Board. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Taskbuilder – Project Management & Task Management Tool With Kanban Board

Exploited in the last 30 days

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.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: Apr 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

taskbuilder Taskbuilder – Project Management & Task Management Tool With Kanban Board taskbuilder:project_management_and_task_management_tool_with_kanban_board (from the name)	through 5.0.2	CNA record

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.