CVE-2026-2289

MEDIUM EPSS 16.7%
Published Mar 4, 20263mo ago · Modified Jun 17, 20261w ago
4.4 CVSS 3.1
Medium
Find Similar
Published Mar 4, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
4.4
Exploitability
1.3
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required High
User Interaction None
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
16.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

References 6

  • 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=
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/81e26924-c9eb-4ddf-89e3-a8bf95d23b78?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.