CVE-2026-89081

MEDIUM 6.1

Tutor LMS <= 4.0.8 - Reflected Cross-Site Scripting via 'back_url' and 'search' Parameters

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'search' parameter in all versions up to, and including, 4.0.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

CWE	CWE-79
Vendor	themeum
Product	tutor lms – elearning and online course solution
Published	Sep 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 ≤ 4.0.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

Credits

Filip Kowalski (Agentunio)