Tutor LMS <=1.8.2 - SQL Injection via tutor_answering_quiz_question/get_answer_by_id

8.8
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE CVE-2021-24186
CVSS 8.8 (High)
Publicly Published March 15, 2021
Last Updated January 22, 2024
Researcher Chloe Chamberland - Wordfence

Description

The tutor_answering_quiz_question/get_answer_by_id function pair from the Tutor LMS – eLearning and online course solution WordPress plugin before 1.8.3 was vulnerable to UNION based SQL injection that could be exploited by students.

Wordfence blocked 45 attacks targeting this vulnerability in the past 24 hours.

Learn more about SQL Injection vulnerabilities and how to prevent them.

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Vulnerability Details for Tutor LMS – eLearning and online course solution

Software Type Plugin
Software Slug tutor (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.8.3, or a newer patched version
Affected Version
  • < 1.8.3
Patched Version
  • 1.8.3

Recent vulnerabilities in Tutor LMS – eLearning and online course solution

# Title CVE ID CVSS Researchers Date
1 Tutor LMS – eLearning and online course solution < 4.0.6 - Authenticated (Custom Role+) Arbitrary File Read CVE-2026-19093 6.5 Sai Praneeth Koti August 28, 2026
2 Tutor LMS <= 4.0.5 - Unauthenticated Remote Code Execution via 'template' and 'data' POST Parameters CVE-2026-16759 6.5 Slopothecary August 27, 2026
3 Tutor LMS – eLearning and online course solution < 4.0.6 - Unauthenticated SQL Injection CVE-2026-19094 7.5 Jakub Herman August 24, 2026
4 Tutor LMS <= 4.0.5 - Authenticated (Instructor+) Insecure Direct Object Reference CVE-2026-14187 4.3 Mustafa Ahmed August 20, 2026
5 Tutor LMS – eLearning and online course solution < 4.0.0 - Missing Authorization CVE-2026-14310 4.3 Sanjar Tulkinov July 30, 2026
6 Tutor LMS <= 4.0.1 - Authenticated (Administrator+) SQL Injection via 'coupon_code' Parameter CVE-2026-15444 4.9 Wordfence PRISM July 27, 2026
7 Tutor LMS <= 4.0.0 - Authenticated (Subscriber+) SQL Injection via Stored Quiz Answer Array CVE-2026-15022 6.5 Supakiad S. (m3ez) July 15, 2026
8 Tutor LMS – eLearning and online course solution <= 3.9.13 - Unauthenticated Insecure Direct Object Reference CVE-2026-57694 4.3 TristanInSec July 6, 2026
9 Tutor LMS <= 3.9.13 - Authenticated (Subscriber+) Information Exposure CVE-2026-14306 4.3 John Umoru July 2, 2026
10 Tutor LMS <= 3.9.13 - Authenticated (Author+) Stored Cross-Site Scripting via Lesson Attachment Title CVE-2026-13443 6.4 skyv3il June 30, 2026

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