CVE-2021-24186

Name: CVE-2021-24186
Creator: NVD / NIST
Published: 2021-04-05T19:15:16.703+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.25%

Last modified Jun 17, 2026

CVE-2021-24186 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 1.25% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.25%

65.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Themeum	Tutor Lms	< 1.8.3

References

https://wpscan.com/vulnerability/5f5c0c6c-6f76-4366-b590-0aab557f8c60Exploit, Third Party Advisory
https://www.wordfence.com/blog/2021/03/several-vulnerabilities-patched-in-tutor-lms-plugin/Exploit, Third Party Advisory
https://wpscan.com/vulnerability/5f5c0c6c-6f76-4366-b590-0aab557f8c60Exploit, Third Party Advisory
https://www.wordfence.com/blog/2021/03/several-vulnerabilities-patched-in-tutor-lms-plugin/Exploit, Third Party Advisory

Timeline

Published: Apr 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24186?

How severe is CVE-2021-24186?

CVE-2021-24186 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.25% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24186?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-24186?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST