PT-2026-22860 · WordPress · Taskbuilder

Phap Nguyen Anh · Published 2026-03-04 · Updated 2026-03-04 · CVE-2026-2289

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Taskbuilder plugin for WordPress versions up to and including 5.0.3

Description The Taskbuilder plugin for WordPress is susceptible to Stored Cross-Site Scripting through admin settings. This is due to inadequate input sanitization and output escaping, allowing authenticated attackers with administrator-level permissions or higher to inject arbitrary web scripts into pages. These scripts will execute when a user accesses the injected page. This issue specifically impacts multi-site installations and those where unfiltered html has been disabled.

Recommendations Update the Taskbuilder plugin to a version later than 5.0.3.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-2289

Affected Products

Taskbuilder

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2026-2289 · Security Note
• https://plugins.trac.wordpress.org/browser/taskbuilder/trunk/includes/class-wppm-functions.php#L19 · Note
• https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.1/includes/admin/email_notifications/wppm_get_en_general_setting.php#L30 · Note
• https://plugins.trac.wordpress.org/browser/taskbuilder/trunk/includes/admin/email_notifications/wppm_get_en_general_setting.php#L30 · Note
• https://twitter.com/CVEnew/status/2029039198947147998 · Twitter Post
• https://t.me/CVEtracker/46269 · Telegram Post
• https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.1/includes/class-wppm-functions.php#L19 · Note
• https://twitter.com/infoflowcloud/status/2029040623068536975 · Twitter Post
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3468819%40taskbuilder&new=3468819%40taskbuilder&sfp_email=&sfph_mail= · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/81e26924-c9eb-4ddf-89e3-a8bf95d23b78?source=cve · Note
• https://twitter.com/CVEarity/status/2029167629395718435 · Twitter Post