Medium severity · published Sep 19, 2026
CVE-2026-89081
Tutor LMS <= 4.0.8 - Reflected Cross-Site Scripting via 'back_url' and 'search' Parameters
6.1
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TL
Tutor LMS – eLearning and online course solution · themeum
through 4.0.8 · source: vendor
Affected product
TL
Tutor LMS – eLearning and online course solution
themeum
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89081
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-89081
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Dashboard.php#L282
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/components/SearchFilter.php#L283
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/templates/account.php#L25
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/templates/dashboard/account/settings.php#L95
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?reponame=&old=3700174%40tutor&new=3700174%40tutor
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/dcffa961-f670-494d-874c-50538038b915?source=cve
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