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CVE-2026-2289

MEDIUM 4.4 CVSS 3.1
Published
March 4, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Description

The Taskbuilder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 5.0.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected WordPress components

  • Taskbuilder – Project Management & Task Management Tool With Kanban Board Plugin · taskbuilder
    Confirmed match Active
    Up to and including 5.0.3
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • taskbuilder Taskbuilder – Project Management & Task Management Tool With Kanban Board — Up to and including 5.0.3

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.1/includes/admin/email_notifications/wppm_get_en_general_setting.php#L30
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.1/includes/class-wppm-functions.php#L19
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/taskbuilder/trunk/includes/admin/email_notifications/wppm_get_en_general_setting.php#L30
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/taskbuilder/trunk/includes/class-wppm-functions.php#L19
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3468819%40taskbuilder&new=3468819%40taskbuilder&sfp_email=&sfph_mail=
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/81e26924-c9eb-4ddf-89e3-a8bf95d23b78?source=cve
  • nvd.nist.gov Official NVD record