{"id":"CVE-2026-2289","state":"PUBLISHED","title":"Taskbuilder <= 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.","publishedAt":"2026-03-04T01:21:58.529Z","updatedAt":"2026-04-08T17:03:49.700Z","severity":{"score":4.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["taskbuilder Taskbuilder – Project Management & Task Management Tool With Kanban Board"],"affected":[{"vendor":"taskbuilder","product":"Taskbuilder – Project Management & Task Management Tool With Kanban Board","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.0.3","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/81e26924-c9eb-4ddf-89e3-a8bf95d23b78?source=cve","https://plugins.trac.wordpress.org/browser/taskbuilder/trunk/includes/admin/email_notifications/wppm_get_en_general_setting.php#L30","https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.1/includes/admin/email_notifications/wppm_get_en_general_setting.php#L30","https://plugins.trac.wordpress.org/browser/taskbuilder/trunk/includes/class-wppm-functions.php#L19","https://plugins.trac.wordpress.org/browser/taskbuilder/tags/5.0.1/includes/class-wppm-functions.php#L19","https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3468819%40taskbuilder&new=3468819%40taskbuilder&sfp_email=&sfph_mail="],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/2xxx/CVE-2026-2289.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-2289","state":"PUBLISHED","datePublished":"2026-03-04T01:21:58.529Z","dateUpdated":"2026-04-08T17:03:49.700Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-02-10T15:17:13.447Z"},"containers":{"cna":{"title":"Taskbuilder <= 5.0.3 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Block Emails' Field","descriptions":[{"lang":"en","value":"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. 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