PT-2026-54473 · Themeum · Tutor Lms – Elearning/Online Course Solution

Skyv3Il · Published 2026-07-01 · Updated 2026-07-01 · CVE-2026-13443

NVD

CVSS v3.1

6.4

Medium

Base vector

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

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Lesson Attachment Title in all versions up to, and including, 3.9.13 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-13443

Affected Products

Tutor Lms – Elearning/Online Course Solution

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-13443 · Security Note
• https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Utils.php#L1688 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/7483762c-5356-4844-90a9-511d9ec48625?source=cve · Note
• https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.13/templates/global/attachments.php#L34 · Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3590029%40tutor&new=3590029%40tutor&sfp_email=&sfph_mail= · Note
• https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Utils.php#L1720 · Note
• https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.13/classes/Utils.php#L1688 · Note
• https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.13/classes/Utils.php#L1720 · Note
• https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/templates/global/attachments.php#L34 · Note