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CVE-2022-0441· NVD / CVE Program· CNA WPScan

MasterStudy LMS < 2.7.6 - Unauthenticated Admin Account Creation

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

CriticalCVSS 9.8 · v3.1—Weaponized No fix recorded
Published
Mar 7, 2022
Updated
Jun 17, 2026
EPSS
85.3% · 100th percentile
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Report tools

JSON

Action score

65

This week

Don’t wait for the next maintenance window.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
26 / 30 · 85.3%

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
stylemixthemesmasterstudy lms

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • stylemixthemes masterstudy lmsbefore 2.7.6

Versions reported by the vendor

Affected version ranges reported by the assigning authority (WPScan). Independent of NVD's CPE analysis and usually ahead of it.

  • Unknown MasterStudy LMS – WordPress LMS Plugin

    • 2.7.6 and later · before 2.7.6affected

Same product

stylemixthemes: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-1512MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.2.5 - Unauthenticated SQL Injection
    62This week
  • CVE-2024-3136MasterStudy LMS <= 3.3.3 - Unauthenticated Local File Inclusion via template
    41Plan
  • CVE-2024-37094WordPress MasterStudy LMS plugin <= 3.2.12 - Broken Access Control vulnerability
    39Monitor
  • CVE-2024-2411MasterStudy LMS <= 3.3.0 - Unauthenticated Local File Inclusion via modal
    39Monitor
  • CVE-2024-2409MasterStudy LMS <= 3.3.1 - Unauthenticated Privilege Escalation via stm_lms_register AJAX Action
    39Monitor
  • CVE-2024-37093WordPress MasterStudy LMS plugin <= 3.2.1 - Cross Site Request Forgery (CSRF) vulnerability
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×1
  • Nuclei detection template ×1
  • Proof-of-concept repository on GitHub ×5

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrywebapps2022-02-18
Metasploit moduleauxiliary/admin/http/wp_masterstudy_privescWordpress MasterStudy Admin Account Creationauxiliary2022-02-18
Nuclei detection templateNuclei template CVE-2022-0441 —
Proof-of-concept repository on GitHubstars:62022-05-06
Proof-of-concept repository on GitHubstars:12022-11-18
Proof-of-concept repository on GitHubstars:12023-06-02
Proof-of-concept repository on GitHubstars:02023-10-03
Proof-of-concept repository on GitHubstars:02026-07-21

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-17 d
  2. Metasploit-17 d
  3. Published
  4. TodayOct 6, 2026+1674 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-269 · Improper Privilege Management

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

To simplify setup, a service account is granted broad, cluster-wide permissions. The principle of least privilege is skipped during installation.

The bug in code

The whole CWE-269 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

yaml
kind: ClusterRolerules:  - apiGroups: ["*"]    resources: ["*"]    verbs: ["*"]

Fixed

yaml
kind: Rolemetadata:  namespace: lodos-systemrules:  - apiGroups: ["apps"]    resources: ["deployments"]    verbs: ["get", "list", "update"]

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records