High severity · published Feb 3, 2026
CVE-2026-1375
Tutor LMS <= 3.9.5 - Insecure Direct Object Reference to Authenticated (Instructor+) Arbitrary Course Modification and Deletion
8.1
CVSS
0.4%
EPSS
No
On KEV
Description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object References (IDOR) in all versions up to, and including, 3.9.5. This is due to missing object-level authorization checks in the `course_list_bulk_action()`, `bulk_delete_course()`, and `update_course_status()` functions. This makes it possible for authenticated attackers, with Tutor Instructor-level access and above, to modify or delete arbitrary courses they do not own by manipulating course IDs in bulk action requests.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% 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 3.9.5 · source: vendor
Affected product
TL
Tutor LMS – eLearning and online course solution
themeum
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1375
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1375
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.5/classes/Course_List.php#L289
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.5/classes/Course_List.php#L437
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.5/classes/Course_List.php#L463
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3448615/tutor/trunk/classes/Course_List.php?contextall=1&old=3339576&old_path=%2Ftutor%2Ftrunk%2Fclasses%2FCourse_List.php
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/4e95b32b-c050-41eb-8fce-461257420eb6?source=cve
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