Skip to main content
HIGH

CVE-2021-24562

CVSS v3

7.5

HIGH

EPSS Score

1.6 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

The LMS by LifterLMS – Online Course, Membership & Learning Management System Plugin for WordPress plugin before 4.21.2 was affected by an IDOR issue, allowing students to see other student answers and grades

Technical details

Published
2021-08-23

Frequently asked questions

What is CVE-2021-24562?

The LMS by LifterLMS – Online Course, Membership & Learning Management System Plugin for WordPress plugin before 4.21.2 was affected by an IDOR issue, allowing students to see other student answers and grades

Is CVE-2021-24562 actively exploited?

Active exploitation of CVE-2021-24562 has not been confirmed. Its EPSS score was 1.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-24562?

CVE-2021-24562 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2021-24562 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

No credit card required · 500 free checks/month · Free API key