CVE-2026-8279Network attack vector

Unauthenticated course-progress deletion via missing capability check

Published Sep 7, 2026 · Updated Sep 8, 2026

Missing authorization in Masteriyo LMS 2.2.0 and earlier allows remote attackers to delete any student's course-progress records. The CourseProgressItemsController delete_item_permissions_check callback accepts deletion requests without checking the caller's capabilities. No authentication is required; the bounded consequence is loss of stored course-progress data, with no reported access to other student records.

CVSS severity5.3
Medium
EPSS probability0.24%
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 Masteriyo LMS 2.2.0 and earlier allows remote attackers to delete any student's course-progress records. The CourseProgressItemsController delete_item_permissions_check callback accepts deletion requests without checking the caller's capabilities. No authentication is required; the bounded consequence is loss of stored course-progress data, with no reported access to other student records.

The record

CVE
CVE-2026-8279
Published
Sep 7, 2026
Updated
Sep 8, 2026
Vendor
Query Solutions Ltd.
Product
Masteriyo LMS
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 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=0 <=2.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Query Solutions Ltd. · Masteriyo LMSversion=0 <=2.2.0

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

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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