CVE-2026-19094: Tutor LMS < 4.0.6 - Unauthenticated SQLi via 'offset' and 'item_per_page' Parameters
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Tutor LMS (WordPress plugin)to a version that resolves this vulnerability.Fixed in 4.0.6 - Compensating control
Restrict access to Tutor LMS endpoints used for unauthenticated 'offset' and 'item_per_page' requests (e.g., via WAF/rules or network/ACL) until upgrading to 4.0.6.
Event History
Frequently Asked Questions
What version should administrators upgrade to?
Upgrade Tutor LMS to version 4.0.6 or later. Versions before 4.0.6 are affected.
Does an attacker need a WordPress account or course enrollment to exploit this issue?
No. The SQL injection and access to non-public course question-and-answer content can be triggered by an unauthenticated user.
Can this issue be used to extract arbitrary database contents?
On the database engines tested, the injected SQL does not allow arbitrary data extraction. The documented confidentiality impact is exposure of question-and-answer content from courses that are not publicly available.