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 an

high Affects lifterlms (WordPress plugin). Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

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 an

Package
lifterlms (WordPress plugin) WordPress
Affected versions
<4.21.2
Fixed in
4.21.2
Severity
high  CVSS 7.5
Exploitation
not on CISA KEV · EPSS 2% (76.1th percentile)
Published
2021-08-23
Source
nvd

References

CWE-639
NVD recordlifterlms (WordPress plugin) advisories

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