CVE-2022-4395

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-01-30. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 18%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The Membership For WooCommerce WordPress plugin before 2.1.7 does not validate uploaded files, which could allow unauthenticated users to upload arbitrary files, such as malicious PHP code, and achieve RCE.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
96.8%
KEV
Not listed

Published

January 30, 2023

Last Modified

March 27, 2025

Advisory Details (3)

Auto-updated Jun 9, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Wordpress Plugin - Membership For WooCommerce < v2.1.7 - Arbitrary File Upload to Shell (Unauthenticated) - PHP webapps Exploit

https://www.exploit-db.com/exploits/51959
generic🟡 PoC Available

Membership For WooCommerce < 2.1.7 – Unauthenticated Arbitrary File Upload | CVE 2022-4395 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/80407ac4-8ce3-4df7-9c41-007b69045c40
generic

Packet Storm

https://packetstormsecurity.com/files/177934/WordPress-Membership-For-WooCommerce-Shell-Upload.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 44× 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. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 14:16 UTCEPSS rescore
  4. 2026-07-23 02:14 UTCEG score recompute
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  43. 2026-06-08 14:15 UTCEPSS rescore
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  45. 2026-06-07 15:23 UTCEPSS rescore
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  56. 2026-05-31 00:15 UTCEPSS rescore
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  58. 2026-05-29 13:43 UTCEPSS rescore
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  69. 2026-05-25 07:43 UTCEG score recompute
  70. 2026-05-25 07:43 UTCGHSA enrichment

Publicly available exploits

(2 references)

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

  • Exploit-DBEDB-51959
    First seen Apr 2, 2024

    Wordpress Plugin - Membership For WooCommerce < v2.1.7 - Arbitrary File Upload to Shell (Unauthenticated)

    Open source ↗
  • GitHub PoCMrG3P5/CVE-2022-4395
    First seen Mar 9, 2023

    Mass Auto Exploit CVE-2022-4395 Unauthenticated Arbitrary File Upload

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-4395?
CVE-2022-4395 is a critical vulnerability published on January 30, 2023. The Membership For WooCommerce WordPress plugin before 2.1.7 does not validate uploaded files, which could allow unauthenticated users to upload arbitrary files, such as malicious PHP code, and achieve RCE.
When was CVE-2022-4395 disclosed?
CVE-2022-4395 was first published in the National Vulnerability Database on January 30, 2023, with the most recent update on March 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-4395 actively exploited?
CVE-2022-4395 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-4395?
CVE-2022-4395 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-4395?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-4395, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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