Taskbuilder <= 5.0.9 - Authenticated (Subscriber+) SQL Injection
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| taskbuilder | Taskbuilder – Project Management & Task Management Tool With Kanban Board | up to 5.0.9 | — | No fix listed | CNA |
- Taskbuilder – Project Management & Task Management Tool With Kanban Board Vendortaskbuilder Affected up to 5.0.9 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15267
- 2026-10-03 Alias added: GHSA-8572-g449-grqq
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/746eec41-e8d2-4c51-b63e-726eeadbb2ab?source=cve
- https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.9/includes/admin/projects/open_project/wppm_view_project_tasks.php#L181
- https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.9/includes/admin/projects/open_project/wppm_view_project_tasks.php#L144
- https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.9/includes/class-wppm-admin.php#L545
- https://plugins.trac.wordpress.org/changeset/3576941/taskbuilder/trunk/includes/admin/projects/open_project/wppm_view_project_tasks.php
More taskbuilder vulnerabilities
- TI-2024-09124 Taskbuilder < 3.0.9 - Admin+ SQL Injection CVSS 3.1HIGH 7.2
- TI-2024-09121 Taskbuilder < 3.0.5 - Admin+ SQL Injection CVSS 3.1MEDIUM 4.1
- TI-2025-16598 WordPress Taskbuilder Plugin <= 3.0.6 - SQL Injection vulnerability CVSS 3.1HIGH 8.8
- TI-2026-37822 WordPress Taskbuilder plugin <= 5.0.7 - SQL Injection vulnerability CVSS 3.1HIGH 8.5
- TI-2025-26311 WordPress Taskbuilder plugin <= 4.0.1 - SQL Injection Vulnerability CVSS 3.1HIGH 8.5
- TI-2026-69938 Blind SQL injection in WordPress Taskbuilder plugin CVSS 3.1HIGH 8.5
Sources
- CVE-2026-15267 · CVE Program
- CVE-2026-15267 · NVD
- FIRST EPSS
- GHSA-8572-g449-grqq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences