CVE-2026-15022
Received Received - Intake

SQL Injection in Tutor LMS WordPress Plugin

Publication date: 2026-07-16

Last updated on: 2026-07-16

Assigner: Wordfence

Description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to generic SQL Injection via Stored Quiz Answer Array in all versions up to, and including, 4.0.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with custom-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The payload is stored at quiz-attempt time via the wp_ajax_tutor_quiz_abandon handler, but the injected SQL executes only when a privileged user or Tutor REST API key holder requests the /wp-json/tutor/v1/quiz-attempt-details/{id} endpoint, making this a second-order (stored) injection chain.

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Meta Information

Published
2026-07-16
Last Modified
2026-07-16
Generated
2026-07-16
AI Q&A
2026-07-16
EPSS Evaluated
N/A
NVD
CVE-2026-15022
EUVD
EUVD-2026-44888

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
tutor_lms tutor_lms to 4.0.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Attack-Flow Graph

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Executive Summary

This is a stored SQL injection vulnerability in the Tutor LMS WordPress plugin affecting versions up to 4.0.0. It occurs due to insufficient escaping of user input in quiz answers and lack of proper SQL query preparation. Attackers with custom-level access can inject malicious SQL queries that execute when privileged users or API key holders access specific endpoints, potentially extracting sensitive database information.

Detection Guidance

This vulnerability involves a stored SQL injection in the Tutor LMS plugin for WordPress. Detection requires checking for suspicious SQL patterns in quiz attempt data or database logs. Review WordPress logs for unusual queries or payloads in the wp_ajax_tutor_quiz_abandon handler. Examine the /wp-json/tutor/v1/quiz-attempt-details/{id} endpoint responses for unexpected data exposure.

Impact Analysis

If you use the vulnerable Tutor LMS plugin, attackers could steal sensitive data from your WordPress database, such as user credentials, personal information, or other confidential content. The attack requires authenticated access but could lead to significant data breaches if exploited.

Compliance Impact

This vulnerability could lead to unauthorized data access, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Organizations may face compliance violations, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Immediately update the Tutor LMS plugin to the latest version beyond 4.0.0. If an update is unavailable, disable the plugin temporarily. Restrict database access for WordPress users to minimize exposure. Monitor database queries for unauthorized SQL commands. Consider implementing a web application firewall to block malicious payloads.

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