Masteriyo LMS < 3.4.2 - Subscriber+ Arbitrary User Course Progress Disclosure via IDOR
The Masteriyo LMS WordPress plugin before 3.4.2 does not verify that the user making the request owns the course-progress records being returned, allowing any authenticated user, such as a self-registered subscriber, to read another user's learning activity. The ownership check it applies is skipped whenever the requested account is not named with a non-zero value, in which case the records of every learner on the site are returned at once.
CVE-2026-82849
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-82849
Masteriyo LMS
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Unknown",
"product": "Masteriyo LMS",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "3.4.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-82849
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #531 · Revision 1
- Added to Heist Feed
- Publisher date