Tutor LMS exposes private course questions and answers
Tutor LMS before 4.0.6 fails to validate values used in a database query and fails to restrict the template file a request loads. An unauthenticated attacker can inject query grammar and read questions and answers from non-public courses; the documented database behavior limits the disclosed impact to course content rather than arbitrary database extraction.
- Component
- Tutor LMS
- Plugin slug
tutor-lms- Affected
- 4.0.0 to < 4.0.6
- Safe version
4.0.6- Published
- Aug 26, 2026
This CVE was published Aug 26, 2026 and is one of 37 known issues for this plugin.
Update, patch or deactivate.
Update to 4.0.6 or later and assess private course, quiz, question, and answer content for unauthorized disclosure.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Tutor LMS WordPress plugin before 4.0.6 does not validate values used to build a database query, and does not restrict which template file a request may load, allowing unauthenticated users to inject SQL and to read question and answer content belonging to courses that are not publicly available. The injected text reaches the query as grammar rather than as data, and on the database engines tested it does not yield extraction of arbitrary data, so the confidentiality impact is the disclosed course content rather than the database at large.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N