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TI-2026-56158 Aliases CVE-2026-81340GHSA-332v-j356-q3mj

MasterStudy LMS < 3.7.50 - Instructor+ Order Status Manipulation via IDOR

Priority LOW 18CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-639.

Summary

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform per-object ownership or capability checks when updating orders through its REST API, allowing users with the Instructor role to modify any order on the site, granting free course enrolment, revoking other users' paid enrolments, and tampering with order notes.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00318 24th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed MasterStudy LMS WordPress Plugin (Unknown): 3.7.50

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownMasterStudy LMS WordPress Pluginbefore 3.7.503.7.50Patch availableCNA
  • MasterStudy LMS WordPress Plugin VendorUnknown Affected before 3.7.50 Fixed in 3.7.50 Patch available CNA

Remediation

  • Fix · CNA MasterStudy LMS WordPress Plugin (Unknown) Fixed in 3.7.50

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    MasterStudy LMS WordPress Plugin 3.7.50

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-60232 MasterStudy LMS 3.6.2 - < 3.7.50 - Instructor+ Student PII Disclosure via IDORPriority LOW 13
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81340
  2. 2026-10-03 Alias added: GHSA-332v-j356-q3mj

References

Exploit 1

Sources

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