CVE-2022-0441

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-03-08. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8EG
EchelonGraph verdictMitigate this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 85%
  • Public exploit code is available (Metasploit, epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 85%CVSS: 9.8Exploit: Metasploit · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

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

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
83
EG Risk 83/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation85% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
85%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

March 7, 2022

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Oct 3, 2026
🔬 Proof of concept available. Fix referenced — no release confirmed yet.
generic🟡 PoC Available

MasterStudy LMS < 2.7.6 – Unauthenticated Admin Account Creation | CVE 2022-0441 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/173c2efe-ee9c-4539-852f-c242b4f728ed

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 3× in last 7d / 14× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-02 16:23 UTCEPSS rescore
  2. 2026-09-30 15:46 UTCEG score recompute
  3. 2026-09-30 15:00 UTCEPSS rescore
  4. 2026-09-28 13:47 UTCEPSS rescore
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  17. 2026-08-30 19:14 UTCEPSS rescore
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  1. 2026-08-08 16:34 UTCEPSS rescore
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  3. 2026-08-04 15:06 UTCEPSS rescore
  4. 2026-08-04 10:34 UTCEPSS rescore
  5. 2026-07-24 14:15 UTCEPSS rescore
  6. 2026-07-24 14:15 UTCEPSS rescore
  7. 2026-07-23 02:06 UTCEG score recompute
  8. 2026-07-22 22:53 UTCEG score recompute
  9. 2026-07-22 14:06 UTCEPSS rescore
  10. 2026-07-20 17:05 UTCEPSS rescore
  11. 2026-07-16 17:00 UTCEPSS rescore
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  18. 2026-07-07 13:43 UTCEPSS rescore
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  22. 2026-07-06 02:21 UTCEPSS rescore
  23. 2026-07-04 06:29 UTCEPSS rescore
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  25. 2026-07-01 15:04 UTCEPSS rescore
  26. 2026-06-25 13:48 UTCEPSS rescore
  27. 2026-06-25 13:48 UTCEPSS rescore
  28. 2026-06-23 21:31 UTCEPSS rescore
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  30. 2026-06-19 19:24 UTCEPSS rescore
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  32. 2026-06-15 17:46 UTCEPSS rescore
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  35. 2026-06-10 22:16 UTCEPSS rescore
  36. 2026-06-08 14:15 UTCEPSS rescore
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  39. 2026-06-07 15:23 UTCEPSS rescore
  40. 2026-06-07 15:23 UTCEPSS rescore
  41. 2026-06-06 13:46 UTCEPSS rescore
  42. 2026-06-06 13:46 UTCEPSS rescore
  43. 2026-06-05 22:45 UTCEPSS rescore
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  45. 2026-06-05 06:09 UTCEPSS rescore
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  47. 2026-06-04 13:11 UTCEPSS rescore
  48. 2026-06-04 13:10 UTCEPSS rescore
  49. 2026-06-02 20:11 UTCEPSS rescore
  50. 2026-06-02 20:11 UTCEPSS rescore
  51. 2026-05-31 00:15 UTCEPSS rescore
  52. 2026-05-31 00:15 UTCEPSS rescore
  53. 2026-05-28 13:43 UTCEPSS rescore
  54. 2026-05-28 13:43 UTCEPSS rescore
  55. 2026-05-27 13:39 UTCEPSS rescore
  56. 2026-05-27 13:39 UTCEPSS rescore
  57. 2026-05-26 02:07 UTCEG score recompute
  58. 2026-05-26 02:07 UTCGHSA enrichment

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitauxiliary/admin/http/wp_masterstudy_privesc✓ verified
    First seen Feb 18, 2022

    Wordpress MasterStudy Admin Account Creation

    Open source ↗
  • GitHub PoCbiulove0x/CVE-2022-0441
    First seen May 6, 2022

    WordPress Plugin MasterStudy LMS 2.7.5 - Unauthenticated Admin Account Creation

    Open source ↗
  • Exploit-DBEDB-50752
    First seen Feb 18, 2022

    WordPress Plugin MasterStudy LMS 2.7.5 - Unauthenticated Admin Account Creation

    Open source ↗
  • Nucleihttp/cves/2022/CVE-2022-0441.yaml
    First seen Jan 1, 2022

    MasterStudy LMS <2.7.6 - Improper Access Control

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-0441?
CVE-2022-0441 is a critical vulnerability published on March 7, 2022. 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
When was CVE-2022-0441 disclosed?
CVE-2022-0441 was first published on March 7, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-0441 actively exploited?
CVE-2022-0441 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 85% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-0441?
CVE-2022-0441 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-0441?
A fix for CVE-2022-0441 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2022-0441

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