taskbuilder Taskbuilder Plugin up to 5.0.8 on WordPress AJAX task_search sql injection

Summaryinfo

A vulnerability has been found in taskbuilder Taskbuilder Plugin up to 5.0.8 on WordPress and classified as critical. The affected element is an unknown function of the component AJAX Handler. This manipulation of the argument task_search causes sql injection. This vulnerability is tracked as CVE-2026-12110. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in taskbuilder Taskbuilder Plugin up to 5.0.8 on WordPress and classified as critical. Affected by this vulnerability is an unknown part of the component AJAX Handler. The manipulation of the argument task_search with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Taskbuilder – Project Management & Task Management Tool With Kanban Board plugin for WordPress is vulnerable to generic SQL Injection via the 'task_search' parameter in all versions up to, and including, 5.0.8 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The wppm_get_task_list AJAX handler performs no capability check and no nonce verification, meaning any authenticated user including those with Subscriber-level access can invoke it directly.

The weakness was disclosed by d.v4n_s3c. It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-12110 since 06/12/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/01/2026). The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-40894). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• taskbuilder

Name

• Taskbuilder Plugin

Version

• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8

CPE 2.3info

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CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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