CVE-2026-2289

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.

PUBLISHED Reserved 2026-02-10 | Published 2026-03-04 | Updated 2026-03-04 | Assigner Wordfence

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Timeline

Credits

Phap Nguyen Anh finder

References

www.wordfence.com/...-c9eb-4ddf-89e3-a8bf95d23b78?source=cve

plugins.trac.wordpress.org/...ppm_get_en_general_setting.php

plugins.trac.wordpress.org/...ppm_get_en_general_setting.php

plugins.trac.wordpress.org/...ludes/class-wppm-functions.php

plugins.trac.wordpress.org/...ludes/class-wppm-functions.php

plugins.trac.wordpress.org/...kbuilder&sfp_email=&sfph_mail=

cve.org (CVE-2026-2289)

nvd.nist.gov (CVE-2026-2289)

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