CVE-2022-0441
CriticalExploitedPublic exploitThe MasterStudy LMS WordPress plugin before 2.7.6 does to validate some parameters given when registering a new account, allowing unauthenticated users to register as an admin
Published Mar 7, 2022 · Updated Nov 21, 2024 · Also known as 18fd631d-9e9b-46ee-953f-61ad3458e1dd
Key Facts
Patch immediately- CVE-2022-0441 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Masterstudy Lms (Stylemixthemes), masterstudy-lms-learning-management-system (wordpress-plugin), MasterStudy LMS – WordPress LMS Plugin.
- It is exploited in the wild, listed in Industry KEV feed since Feb 1, 2022. Public exploit code is available.
- EPSS estimates a 85% probability of exploitation in the next 30 days.
- Fixed versions are available, including MasterStudy LMS – WordPress LMS Plugin 2.7.6, masterstudy-lms-learning-management-system 2.7.6, Masterstudy Lms 2.7.6.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
85%
Higher than 99.7% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2022-0441 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
The MasterStudy LMS WordPress plugin before 2.7.6 does to validate some parameters given when registering a new account, allowing unauthenticated users to register as an admin
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Feb 1, 2022 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Masterstudy LmsStylemixthemes | See advisory | 2.7.6 |
| masterstudy-lms-learning-management-systemwordpress-plugin | See advisory | 2.7.6 |
| MasterStudy LMS – WordPress LMS Plugin | >= 2.7.6 | 2.7.6 |
Patched Releases
MasterStudy LMS – WordPress LMS Plugin
2.7.6
masterstudy-lms-learning-management-system
2.7.6
Masterstudy Lms
2.7.6
Timeline
Added to Industry KEV feed
Feb 1, 2022
Publicly disclosed
Mar 7, 2022
Last updated
Nov 21, 2024
Weakness Type
- CWE-269 Improper Privilege Management
References
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/18fd631d-9e9b-46ee-953f-61ad3458e1dd?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/18fd631d-9e9b-46ee-953f-61ad3458e1dd?source=api-scan
- patchhttps://plugins.trac.wordpress.org/changeset/2667195
- exploitVulnCheck exploitation report
- exploithttps://wpscan.com/vulnerability/173c2efe-ee9c-4539-852f-c242b4f728ed
FAQ
Common Questions.
The MasterStudy LMS WordPress plugin before 2.7.6 does to validate some parameters given when registering a new account, allowing unauthenticated users to register as an admin
Affected: Masterstudy Lms (Stylemixthemes); masterstudy-lms-learning-management-system (wordpress-plugin); MasterStudy LMS – WordPress LMS Plugin versions >= 2.7.6. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Feb 1, 2022.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including MasterStudy LMS – WordPress LMS Plugin 2.7.6, masterstudy-lms-learning-management-system 2.7.6, Masterstudy Lms 2.7.6.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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