CVE-2026-1640: CWE-862 Missing Authorization in taskbuilder Taskbuilder – Project Management & Task Management Tool With Kanban Board
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.
AI Analysis
Technical Summary
The Taskbuilder WordPress plugin suffers from an authorization bypass vulnerability (CWE-862) in its AJAX comment submission functions (wppm_submit_proj_comment and wppm_submit_task_comment). Authenticated users with minimal privileges can submit comments on projects or tasks they should not access, including private ones. The vulnerability also allows injection of arbitrary HTML and CSS through insufficient sanitization of the comment_body parameter. This issue affects all versions up to and including 5.0.2. No official patch or vendor advisory is currently provided, and no known exploits are reported in the wild.
Potential Impact
An attacker with subscriber-level access can create unauthorized comments on any project or task, including private ones they cannot view or are not assigned to. This can lead to unauthorized content injection, specifically arbitrary HTML and CSS, which may be used for UI manipulation or other low-impact attacks. The vulnerability does not impact confidentiality or availability but poses an integrity risk to the comment content within the plugin.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict subscriber-level access where possible and monitor for suspicious comment activity. Avoid granting unnecessary privileges to authenticated users. No official fix or temporary workaround is currently documented.
CVE-2026-1640: CWE-862 Missing Authorization in taskbuilder Taskbuilder – Project Management & Task Management Tool With Kanban Board
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Taskbuilder WordPress plugin suffers from an authorization bypass vulnerability (CWE-862) in its AJAX comment submission functions (wppm_submit_proj_comment and wppm_submit_task_comment). Authenticated users with minimal privileges can submit comments on projects or tasks they should not access, including private ones. The vulnerability also allows injection of arbitrary HTML and CSS through insufficient sanitization of the comment_body parameter. This issue affects all versions up to and including 5.0.2. No official patch or vendor advisory is currently provided, and no known exploits are reported in the wild.
Potential Impact
An attacker with subscriber-level access can create unauthorized comments on any project or task, including private ones they cannot view or are not assigned to. This can lead to unauthorized content injection, specifically arbitrary HTML and CSS, which may be used for UI manipulation or other low-impact attacks. The vulnerability does not impact confidentiality or availability but poses an integrity risk to the comment content within the plugin.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict subscriber-level access where possible and monitor for suspicious comment activity. Avoid granting unnecessary privileges to authenticated users. No official fix or temporary workaround is currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-01-29T18:12:27.876Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6995672780d747be204d2927
Added to database: 2/18/2026, 7:15:51 AM
Last enriched: 4/9/2026, 6:31:33 PM
Last updated: 5/22/2026, 4:35:02 AM
Views: 68
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