Taskbuilder Plugin up to 5.0.2 on WordPress Private Project wppm_submit_proj_comment/wppm_submit_task_comment comment_body authorization

Summaryinfo

A vulnerability identified as critical has been detected in Taskbuilder Plugin up to 5.0.2 on WordPress. The affected element is the function wppm_submit_proj_comment/wppm_submit_task_comment of the component Private Project Handler. Performing a manipulation of the argument comment_body results in authorization. This vulnerability is identified as CVE-2026-1640. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Taskbuilder Plugin up to 5.0.2 on WordPress. This affects the function wppm_submit_proj_comment/wppm_submit_task_comment of the component Private Project Handler. The manipulation of the argument comment_body with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at wordfence.com. This vulnerability is uniquely identified as CVE-2026-1640. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/18/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Name

• Taskbuilder Plugin

Version

• 5.0.0
• 5.0.1
• 5.0.2

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CPE 2.2info

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