CVE-2026-13443

MEDIUM 6.4

Tutor LMS <= 3.9.13 - Authenticated (Author+) Stored Cross-Site Scripting via Lesson Attachment Title

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	themeum
Product	tutor lms – elearning and online course solution
Published	Jul 1, 2026

Stay Ahead of the Next One

Get instant alerts for themeum tutor lms – elearning and online course solution

Be the first to know when new medium vulnerabilities affecting themeum tutor lms – elearning and online course solution are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

themeum / Tutor LMS – eLearning and online course solution

0 ≤ 3.9.13

References

NVD ↗ CVE.org ↗ EPSS Data ↗

Credits

skyv3il