CVE-2026-82848Network attack vector

Enrollment data disclosure via unchecked REST record lookup

Published Sep 9, 2026 · Updated Sep 9, 2026

Missing authorization in affected Themeisle Masteriyo LMS releases before 3.4.0 allows remote attackers to read learner enrollment data. The enrollment-record REST handler returns the record selected by a sequential identifier without checking whether the requester can view it. No account is required to enumerate records; returned fields expose another learner's enrollment status, timestamps, and course progress, while no write or service impact is reported.

CVSS severity5.3
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in affected Themeisle Masteriyo LMS releases before 3.4.0 allows remote attackers to read learner enrollment data. The enrollment-record REST handler returns the record selected by a sequential identifier without checking whether the requester can view it. No account is required to enumerate records; returned fields expose another learner's enrollment status, timestamps, and course progress, while no write or service impact is reported.

The record

CVE
CVE-2026-82848
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
Query Solutions Ltd.
Product
Masteriyo LMS
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.3.1 <3.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Query Solutions Ltd. · Masteriyo LMSversion=1.3.1 <3.4.0

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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