What is the CVSS score of CVE-2021-4347?

CVE-2021-4347 has a CVSS 3.1 base score of 9.9 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for CVE-2021-4347?

Yes, a public proof-of-concept exploit is available for CVE-2021-4347. Prioritise patching immediately. EPSS: 0.1%.

Advanced Shipment Tracking For Woocommerce CVE-2021-4347

CRITICAL

Missing Authorization (CWE-862)

2023-06-07 security@wordfence.com

Authentication Bypass WordPress Advanced Shipment Tracking For Woocommerce

9.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.9 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Apr 08, 2026 - 18:17 vuln.today

Public exploit code

CVE Published

Jun 07, 2023 - 02:15 nvd

CRITICAL 9.9

DescriptionCVE.org

The function update_shipment_status_email_status_fun in the plugin Advanced Shipment Tracking for WooCommerce in versions up to 3.2.6 is vulnerable to authenticated arbitrary options update. The function allows attackers (including those at customer level) to update any WordPress option in the database. Version 3.2.5 was initially released as a fix, but doesn't fully address the issue.

AnalysisAI

The function update_shipment_status_email_status_fun in the plugin Advanced Shipment Tracking for WooCommerce in versions up to 3.2.6 is vulnerable to authenticated arbitrary options update. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. The function update_shipment_status_email_status_fun in the plugin Advanced Shipment Tracking for WooCommerce in versions up to 3.2.6 is vulnerable to authenticated arbitrary options update. The function allows attackers (including those at customer level) to update any WordPress option in the database. Version 3.2.5 was initially released as a fix, but doesn't fully address the issue. Affected products include: Zorem Advanced Shipment Tracking For Woocommerce. Version information: up to 3.2.6.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.