WooCommerce Menu Cart Plugin Stored XSS in Variation Data

The Menu Cart for WooCommerce WordPress plugin before 3.2.1 does not sanitise and escape cart item variation data before outputting it in its cart slide-out, allowing unauthenticated users to store a Cross-Site Scripting payload that can be delivered to and executed in the session of another user, including a logged-in administrator.

Casky was already ahead

This CVE exploits attack patterns that Casky's 323matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

This vulnerability represents a stored Cross-Site Scripting (XSS) flaw in the Menu Cart for WooCommerce plugin versions before 3.2.1, where cart item variation data is not properly sanitized or escaped before rendering in the cart slide-out interface. An unauthenticated attacker can inject malicious JavaScript payloads that persist in the cart and execute when viewed by any user—most critically, administrators with elevated privileges. This affects all WooCommerce installations using the vulnerable plugin version, potentially compromising sensitive administrative sessions and enabling account takeover, data theft, or malicious plugin installation.

Casky's 323 mapped skills enable practitioners to identify this attack pattern by correlating MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance) with stored XSS indicators. Security teams using Casky would detect: malformed or unexpected JavaScript code in cart variation parameters during traffic analysis; DOM-based execution patterns in browser sessions following cart interactions; and payload persistence across page refreshes indicating server-side storage. Claude's extended reasoning capability helps practitioners understand the attack chain—how variation data flows through WooCommerce sanitization functions, where escaping fails, and how the payload reaches administrator sessions—allowing them to prioritize remediation and implement compensating controls while awaiting the 3.2.1 patch.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

323 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-105972.

Abuse of Public-Facing API: Mobile API Abuse

mobile security · low

Run

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

MITRE ATT&CK Techniques

TA0001 TA0043

Investigate the attack patterns behind CVE-2026-105972

Casky has 323 skills that investigate the attack patterns behind CVE-2026-105972. Run one and get CVSS-scored findings in 3 minutes.

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