{"id":"CVE-2026-2289","aliases":["EUVD-2026-9353","GHSA-g2p2-cwqf-v437"],"status":"published","title":"Taskbuilder \u003c= 5.0.3 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Block Emails' Field","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.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00286,"percentile":0.21295,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-03-04T01:21:58Z","modified":"2026-06-17T10:30:43Z","products":[{"vendor":"taskbuilder","product":"taskbuilder – project management \u0026 task management tool with kanban board"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/81e26924-c9eb-4ddf-89e3-a8bf95d23b78?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/taskbuilder/trunk/includes/admin/email_notifications/wppm_get_en_general_setting.php#L30"},{"url":"https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.1/includes/admin/email_notifications/wppm_get_en_general_setting.php#L30"},{"url":"https://plugins.trac.wordpress.org/browser/taskbuilder/trunk/includes/class-wppm-functions.php#L19"},{"url":"https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.1/includes/class-wppm-functions.php#L19"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3468819%40taskbuilder\u0026new=3468819%40taskbuilder\u0026sfp_email=\u0026sfph_mail="},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2289"},{"url":"https://github.com/advisories/GHSA-g2p2-cwqf-v437"}],"sources":{"cve":[{"id":"CVE-2026-2289","title":"Taskbuilder \u003c= 5.0.3 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Block Emails' Field","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.","status":"published","published":"2026-03-04T01:21:58.529Z","modified":"2026-04-08T17:03:49.7Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:48:46.911326Z"}],"euvd":[{"id":"EUVD-2026-9353","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.","status":"published","published":"2026-03-04T01:21:58Z","modified":"2026-04-08T17:03:49Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:51.577419Z"}],"ghsa":[{"id":"GHSA-g2p2-cwqf-v437","title":"The Taskbuilder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin...","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.","status":"published","published":"2026-03-04T03:31:34Z","modified":"2026-03-04T03:31:35Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:06:26.357639Z"}],"nvd":[{"id":"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.","status":"published","published":"2026-03-04T02:15:54.317Z","modified":"2026-06-17T10:30:43.707Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:07.420927Z"}]}}