CVE-2026-15267
Received Received - Intake

SQL Injection in Taskbuilder WordPress Plugin

Publication date: 2026-07-28

Last updated on: 2026-07-28

Assigner: Wordfence

Description
The Taskbuilder – Project Management & Task Management Tool With Kanban Board plugin for WordPress is vulnerable to SQL Injection via the 'wppm_proj_filter' parameter in versions up to, and including, 5.0.9. This is due to insufficient escaping on the user-supplied parameter and the lack of sufficient preparation on the existing SQL query — the value is re-read at line 144 using only sanitize_text_field() (overwriting the earlier absint() result), then concatenated into the SQL WHERE clause as an unquoted numeric operand using only esc_sql(), which does not protect against injection in that context, and finally string-interpolated into the $wpdb->prepare() format string, bypassing parameterization entirely. 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.

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Meta Information

Published
2026-07-28
Last Modified
2026-07-28
Generated
2026-07-28
AI Q&A
2026-07-28
EPSS Evaluated
N/A
NVD
CVE-2026-15267
EUVD
EUVD-2026-49721

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wordpresstaskbuilder taskbuilder to 5.0.9 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

This is a SQL Injection vulnerability in the Taskbuilder WordPress plugin up to version 5.0.9. It occurs due to improper handling of the 'wppm_proj_filter' parameter, allowing attackers with subscriber-level access to inject malicious SQL queries. The flaw stems from insufficient input sanitization and bypassing of WordPress database preparation functions.

Detection Guidance

To detect this vulnerability, inspect WordPress sites using the Taskbuilder plugin for versions up to 5.0.9. Check for suspicious SQL queries in logs or database activity. Use tools like WP-CLI to query plugin versions or scan for vulnerable parameters.

Impact Analysis

An attacker could exploit this to extract sensitive data from your WordPress database, such as user credentials, personal information, or other confidential content. They could also potentially modify or delete database entries if additional vulnerabilities exist.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements and potentially HIPAA's safeguards for protected health information. Organizations may face compliance violations, fines, or legal consequences if exploited.

Mitigation Strategies

Immediately update the Taskbuilder plugin to the latest version. If an update is unavailable, disable the plugin until a patch is released. Review database access logs for signs of exploitation and restrict subscriber-level access to sensitive functions.

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