What is the CVSS score of CVE-2026-39540?

CVE-2026-39540 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.2%.

Shipment Tracker WooCommerce CVE-2026-39540

EUVD-2026-36964 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-06-15 Patchstack

GHSA-xqc3-7rmw-qh94

WordPress XSS Wordpress Plugin Shipment Tracker For Woocommerce

6.5

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) PRIMARY

6.5 MEDIUM

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

vuln.today AI

6.5 MEDIUM

Subscriber-level authentication (PR:L) and admin page-view (UI:R) are required; scope change reflects XSS executing in admin browser context.

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

4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Jun 15, 2026 - 23:11 vuln.today

CVE Published

Jun 15, 2026 - 20:18 cve.org

MEDIUM 6.5

DescriptionCVE.org

Subscriber Cross Site Scripting (XSS) in Shipment Tracker for Woocommerce <= 1.5.3.2 versions.

AnalysisAI

Stored Cross-Site Scripting in the Shipment Tracker for WooCommerce WordPress plugin (versions up to and including 1.5.3.2) allows authenticated subscriber-level users to inject malicious scripts that execute in a privileged user's browser session. The CVSS scope-change flag (S:C) indicates the injected payload crosses into the administrator's browser context, enabling session hijacking, credential theft, or unauthorized admin actions. Reported by Patchstack with no public exploit code identified at time of analysis and no CISA KEV listing.

Technical ContextAI

The vulnerability is rooted in CWE-79 (Improper Neutralization of Input During Web Page Generation), the canonical stored XSS weakness class. The affected component is a WooCommerce plugin developed by Amit Mittal (CPE: cpe:2.3:a:amit_mittal:shipment_tracker_for_woocommerce:*:*:*:*:*:*:*:*), which extends WooCommerce order management with shipment tracking data fields. The XSS occurs because subscriber-supplied tracking data - likely shipment notes, tracking numbers, or carrier fields - is stored in the database and later rendered without proper output encoding or sanitization in an administrative view. WordPress subscriber accounts are the lowest authenticated role and typically map to standard customer accounts in WooCommerce storefronts, making the attack surface broad for any site accepting orders.

RemediationAI

The primary remediation is to update the Shipment Tracker for WooCommerce plugin to a version beyond 1.5.3.2; however, no specific patched release version is confirmed in the available data - consult the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/shipment-tracker-for-woocommerce/vulnerability/wordpress-shipment-tracker-for-woocommerce-plugin-1-5-3-2-cross-site-scripting-xss-vulnerability and the WordPress plugin repository for the latest release. If no patched version is yet available, the most effective compensating control is to disable subscriber-level user registration on the WordPress site (Settings > General > uncheck 'Anyone can register'), which removes the low-privilege entry point. Alternatively, restrict submission of shipment tracking data to roles of Shop Manager or higher until a fix is applied - note this may disrupt customer self-service workflows. Installing a WordPress WAF (e.g., Wordfence, Patchstack Shield) with XSS rules can provide partial mitigation but should not substitute for patching.