CVE-2026-81198CWE-639

CVE-2026-81198

Low · published September 2, 2026

CVSS v3.1
3.8
EPSS
0%
Percentile
23.5
In the wild
Unconfirmed
What it is

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of a curriculum object before acting on it, allowing authenticated users with the instructor role to delete or modify curriculum sections and materials belonging to courses owned by other instructors.

The record
Technical detail
CVSS v3.1
3.8 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00318 · 23.5th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-09-02T10:17Z
References (1)
https://wpscan.com/vulnerability/424b3a47-78fe-4c95-a317-c1deaf2b7b0c/ · [email protected]
EPSS history
Timeline
  • 03 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 02 SEP 06:00Z
    MasterStudy LMS < 3.7.46 - Instructor+ Cross-Course Curriculum Deletion and Tampering via IDOR
    cvelistv5