CVE-2026-57640 - Vulnerability Details - OpenCVE

Subscriber Broken Access Control in MasterStudy LMS <= 3.7.30 versions.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Stylemix

MasterStudy LMS

unaffected

Version	Status	Constraints
`n/a`	affected	≤ 3.7.30

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update the WordPress MasterStudy LMS Plugin to the latest available version (at least 3.7.31).

Workaround

No workaround given by the vendor.

References

Link	Providers
https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-30-broken-access-control-vulnerability?_s_id=cve

History

Fri, 26 Jun 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 26 Jun 2026 15:15:00 +0000

Type	Values Removed	Values Added
Description		Subscriber Broken Access Control in MasterStudy LMS <= 3.7.30 versions.
Title		WordPress MasterStudy LMS plugin <= 3.7.30 - Broken Access Control vulnerability
Weaknesses		CWE-862
References		https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-30-broken-access-control-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: Patchstack

Published: 2026-06-26T14:53:15.063Z

Updated: 2026-06-26T15:32:14.383Z

Reserved: 2026-06-25T08:03:17.055Z

Link: CVE-2026-57640

Vulnrichment

Updated: 2026-06-26T15:32:11.504Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-06-26T17:00:04Z

Weaknesses

CWE-862

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-57640", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "state": "PUBLISHED", "assignerShortName": "Patchstack", "dateReserved": "2026-06-25T08:03:17.055Z", "datePublished": "2026-06-26T14:53:15.063Z", "dateUpdated": "2026-06-26T15:32:14.383Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-06-26T14:53:15.063Z"}, "title": "WordPress MasterStudy LMS plugin <= 3.7.30 - Broken Access Control vulnerability", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-862", "description": "CWE-862 Missing Authorization", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-180", "descriptions": [{"lang": "en", "value": "CAPEC-180 Exploiting Incorrectly Configured Access Control Security Levels"}]}], "affected": [{"vendor": "Stylemix", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "packageName": "masterstudy-lms-learning-management-system", "product": "MasterStudy LMS", "versions": [{"lessThanOrEqual": "3.7.30", "status": "affected", "version": "n/a", "versionType": "custom", "changes": [{"at": "3.7.31", "status": "unaffected"}]}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Subscriber Broken Access Control in MasterStudy LMS <= 3.7.30 versions."}], "value": "Subscriber Broken Access Control in MasterStudy LMS <= 3.7.30 versions."}], "references": [{"tags": ["vdb-entry"], "url": "https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-30-broken-access-control-vulnerability?_s_id=cve"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 4.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Update the WordPress MasterStudy LMS Plugin to the latest available version (at least 3.7.31)."}], "value": "Update the WordPress MasterStudy LMS Plugin to the latest available version (at least 3.7.31)."}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "lagi bljr | Patchstack Bug Bounty Program"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-26T15:32:09.297471Z", "id": "CVE-2026-57640", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-26T15:32:14.383Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-57640", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-26T15:32:09.297471Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-26T15:32:11.504Z"}}], "cna": {"title": "WordPress MasterStudy LMS plugin <= 3.7.30 - Broken Access Control vulnerability", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "lagi bljr | Patchstack Bug Bounty Program"}], "impacts": [{"capecId": "CAPEC-180", "descriptions": [{"lang": "en", "value": "CAPEC-180 Exploiting Incorrectly Configured Access Control Security Levels"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Stylemix", "product": "MasterStudy LMS", "versions": [{"status": "affected", "changes": [{"at": "3.7.31", "status": "unaffected"}], "version": "n/a", "versionType": "custom", "lessThanOrEqual": "3.7.30"}], "packageName": "masterstudy-lms-learning-management-system", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update the WordPress MasterStudy LMS Plugin to the latest available version (at least 3.7.31).", "supportingMedia": [{"type": "text/html", "value": "Update the WordPress MasterStudy LMS Plugin to the latest available version (at least 3.7.31).", "base64": false}]}], "references": [{"url": "https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-30-broken-access-control-vulnerability?_s_id=cve", "tags": ["vdb-entry"]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "Subscriber Broken Access Control in MasterStudy LMS <= 3.7.30 versions.", "supportingMedia": [{"type": "text/html", "value": "Subscriber Broken Access Control in MasterStudy LMS <= 3.7.30 versions.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-862", "description": "CWE-862 Missing Authorization"}]}], "providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-06-26T14:53:15.063Z"}}}, "cveMetadata": {"cveId": "CVE-2026-57640", "state": "PUBLISHED", "dateUpdated": "2026-06-26T15:32:14.383Z", "dateReserved": "2026-06-25T08:03:17.055Z", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "datePublished": "2026-06-26T14:53:15.063Z", "assignerShortName": "Patchstack"}, "dataVersion": "5.2"}