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TI-2026-03894 Aliases CVE-2026-4484GHSA-6m8q-32w5-c768

Masteriyo LMS <= 2.1.6 - Missing Authorization to Authenticated (Student+) Privilege Escalation to Administrator

Priority MEDIUM 46CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

The Masteriyo LMS plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.1.6. This is due to the plugin allowing a user to update the user role through the 'InstructorsController::prepare_object_for_database' function. This makes it possible for authenticated attackers, with Student-level access and above, to elevate their privileges to that of an administrator.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0036 29th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
masteriyoMasteriyo LMS – Online Course Builder for eLearning, LMS & Educationup to 2.1.6—No fix listedCNA
  • Masteriyo LMS – Online Course Builder for eLearning, LMS & Education Vendormasteriyo Affected up to 2.1.6 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4484
  2. 2026-10-03 Alias added: GHSA-6m8q-32w5-c768

References

Other 3

  • TI-2024-16396 WordPress LMS by Masteriyo plugin <= 1.7.2 - Privilege Escalation vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-44383 WordPress Masteriyo - LMS plugin <= 3.4.0 - PHP Object Injection vulnerability CVSS 3.1HIGH 8.8
  • TI-2024-09288 Missing authorization in Masteriyo LMS – Online Course Builder for eLearning, LMS &… CVSS 3.1HIGH 8.8
  • TI-2024-28829 WordPress Masteriyo LMS plugin <= 1.11.4 - Broken Access Control vulnerability CVSS 3.1HIGH 7.5
  • TI-2024-28892 WordPress Masteriyo LMS plugin <= 1.11.4 - Insecure Direct Object Reference (IDOR) vulnerability CVSS 3.1HIGH 8.1
  • TI-2026-83308 Unauthenticated content deletion in Masteriyo LMS WordPress plugin CVSS 3.1MEDIUM 6.5
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences