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Tutor LMS <=1.8.2 — SQL Injection via tutor_quiz_builder_get_answers_by_question

CVE-2021-24182Published · Updated

Action summary

Affected: ≤1.8.2Update to 1.8.3 or newer

All remediation steps
Watch plugin
Severity
High8.8
CVSS
8.8
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-89 SQL Injection
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Tutor LMS – eLearning and online course solution tutor

  1. Affected≤ 1.8.2
  2. Patched in1.8.3

Update to 1.8.3 or newer.

You are affected if you run ≤ 1.8.2. Version 1.8.3 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Tutor LMS – eLearning and online course solution.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 1.8.3, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Tutor LMS – eLearning and online course solution to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Chloe Chamberland.

The tutor_quiz_builder_get_answers_by_question AJAX action 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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Tutor LMS – eLearning and online course solution

All 102
More vulnerabilities in Tutor LMS – eLearning and online course solution
SeverityVulnerabilityCVEPublished
Medium6.5Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via REST API Endpoints
≤4.1.2Update to 4.1.3
CVE-2026-93779
Medium4.34.1.3 - Authenticated (Subscriber+) Information Exposure
1.6.4 – 4.1.3Update to 4.2.0
CVE-2026-85570
Medium6.4Authenticated (Subscriber+) Stored Cross-Site Scripting
≤4.1.2Update to 4.1.3
CVE-2026-111407
Medium4.3Insecure Direct Object Reference to Authenticated (Author+) Arbitrary Course Modification and Ownership Takeover via 'ID' Parameter
≤4.1.0Update to 4.1.1
CVE-2026-92715
Medium6.4Authenticated (Subscriber+) Stored Cross-Site Scripting via display_name Parameter
≤4.1.0Update to 4.1.1
CVE-2026-93681

Same weakness (SQL Injection)

All SQL Injection
Other SQL Injection vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 8.8

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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