CVE-2026-89333 json
Tutor LMS <= 4.0.8 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via 'student_id' Parameter
published 2026-09-19 51 d ago modified 2026-09-21 48 d ago also EUVD-2026-83467
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.0.8 via the 'student_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to disclose the email address and Tutor profile phone number of arbitrary WordPress users, including Administrators, by iterating over user IDs via the student_id parameter.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 50 d ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected products
- themeum Tutor LMS – eLearning and online course solution
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/244051ef-5357-4b16-b690-46c8fea56847?source=cve
- plugins.trac.wordpress.org /browser/tutor/tags/4.0.8/templates/user-profile.php#L132
- plugins.trac.wordpress.org /browser/tutor/tags/4.0.8/templates/user-profile.php#L21
- plugins.trac.wordpress.org /browser/tutor/tags/4.0.8/templates/user-profile.php#L137
- plugins.trac.wordpress.org /browser/tutor/tags/4.0.8/classes/Utils.php#L2841
- plugins.trac.wordpress.org /browser/tutor/tags/4.0.8/classes/Template.php#L503
- plugins.trac.wordpress.org /changeset?reponame=&old=3700174%40tutor&new=3700174%40tutor
Sources
- CVE List CVE-2026-89333
- NVD CVE-2026-89333
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.