CVE-2024-33939
Published: 19 May 2025
Summary
CVE-2024-33939 is a medium-severity Authentication Bypass Using an Alternate Path or Channel (CWE-288) vulnerability in Themegrill Masteriyo. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 8.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The vulnerability CVE-2024-33939 is an Authentication Bypass Using an Alternate Path or Channel flaw, tracked as CWE-288, in the Masteriyo LMS WordPress plugin. It affects all versions through 1.7.3 and carries a CVSS 3.1 score of 5.3, reflecting network-accessible exploitation with low attack complexity and no required credentials or user interaction, resulting in limited confidentiality exposure.
An unauthenticated remote attacker can leverage an alternate access path to circumvent normal authentication controls in the learning-management-system component, thereby obtaining unauthorized read access to certain data within the affected LMS installation.
The Patchstack advisory for the WordPress LMS by Masteriyo plugin identifies the issue as a broken-authentication vulnerability in version 1.7.3 and provides the primary public reference for the flaw. The associated EPSS score has remained flat at 0.0746 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-54553
Vulnerability details
Authentication Bypass Using an Alternate Path or Channel vulnerability in masteriyo Masteriyo - LMS learning-management-system.This issue affects Masteriyo - LMS: from n/a through <= 1.7.3.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Authorizing remote access reduces the ability to bypass authentication via unauthorized alternate remote channels.
Users can identify logons via alternate paths or channels by reviewing the previous logon time.
Adaptive requirements can apply across access paths, reducing the ability to bypass authentication via alternate channels or paths.
Centralized IdPs close alternate authentication paths that enable bypass.
Enforces authentication for non-organizational users, making it harder to bypass via alternate paths or channels.
Requires authentication to occur exclusively over the isolated trusted path, directly preventing bypass via alternate or untrusted channels.