CVE-2026-57332: WooCommerce Wallet Auth Bypass Issue

CVE-2026-57332 Overview

CVE-2026-57332 is a broken access control vulnerability in the Wallet System for WooCommerce WordPress plugin. Versions up to and including 2.7.6 are affected. The flaw allows authenticated users with the low-privileged Subscriber role to perform actions that should be restricted to higher-privileged accounts. The issue is tracked under CWE-862: Missing Authorization and is documented in the Patchstack Vulnerability Advisory.

Critical Impact
Authenticated Subscriber-level users can bypass authorization checks to modify wallet data, impacting integrity of financial records within the WooCommerce store.

Affected Products

Wallet System for WooCommerce plugin versions <= 2.7.6
WordPress sites running WooCommerce with the affected plugin installed
E-commerce deployments using the plugin for customer wallet balance management

Discovery Timeline

2026-06-29 - CVE-2026-57332 published to NVD
2026-06-29 - Last updated in NVD database

Technical Details for CVE-2026-57332

Vulnerability Analysis

The Wallet System for WooCommerce plugin extends WooCommerce with customer wallet functionality, enabling stored balances, credits, and transactions. In versions <= 2.7.6, one or more plugin endpoints fail to enforce capability checks before executing privileged operations. An authenticated user holding the Subscriber role — the lowest-privileged authenticated role in WordPress — can invoke these endpoints and trigger actions reserved for administrators or shop managers.

The flaw maps to CWE-862 (Missing Authorization). The plugin verifies that a request comes from a logged-in user but does not verify that the user holds the capability required for the requested action. This produces a high integrity impact and a low availability impact, since wallet balances and transaction data can be manipulated.

EPSS data as of 2026-07-02 places exploitation probability at 0.256%. No public exploit code or proof-of-concept has been published, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Root Cause

The root cause is the absence of capability or nonce validation on plugin action handlers. WordPress plugins are expected to call functions such as current_user_can() and check_admin_referer() before performing state-changing operations. The affected handlers omit these checks, treating authentication as sufficient authorization.

Attack Vector

Exploitation requires network access to the WordPress site and a valid Subscriber account. Subscriber accounts are commonly created through open registration on WooCommerce stores. The attacker sends a crafted HTTP request to the vulnerable plugin endpoint. Because the handler skips capability checks, the request executes with the privileges of the underlying action rather than those of the caller. No user interaction from an administrator is required.

Refer to the Patchstack advisory for advisory-level technical details.

Detection Methods for CVE-2026-57332

Indicators of Compromise

Unexpected wallet balance changes on Subscriber-owned accounts not tied to legitimate orders or refunds
POST requests from Subscriber sessions to plugin AJAX or REST endpoints under admin-ajax.php or /wp-json/ referencing wallet actions
New wallet transaction entries in the plugin's database tables without corresponding WooCommerce order records
Login activity from Subscriber accounts followed immediately by wallet-related HTTP requests

Detection Strategies

Enumerate installed WordPress plugins and flag any wallet-system-for-woocommerce instance at version <= 2.7.6
Correlate WordPress user role with the endpoints they invoke, alerting on Subscribers hitting wallet management actions
Compare wallet ledger totals against WooCommerce order totals on a scheduled basis to detect drift

Monitoring Recommendations

Enable WordPress audit logging to capture role changes, wallet transactions, and privileged action invocations
Forward web server access logs and WordPress audit events to a centralized log platform for correlation
Monitor for spikes in Subscriber account registrations followed by wallet endpoint activity

How to Mitigate CVE-2026-57332

Immediate Actions Required

Update Wallet System for WooCommerce to a version later than 2.7.6 once released by the vendor
Audit recent wallet transactions and reconcile them against WooCommerce order history
Temporarily disable new user registration or restrict it to verified email domains if patching is not immediately possible
Review Subscriber accounts for suspicious activity and disable any that show anomalous behavior

Patch Information

Refer to the Patchstack Vulnerability Advisory for the current fixed version and vendor patch details. Apply the update through the WordPress plugin management interface or via WP-CLI.

Workarounds

Deactivate the Wallet System for WooCommerce plugin until an updated version is installed
Block access to plugin-specific AJAX and REST endpoints for the Subscriber role using a web application firewall rule
Enforce virtual patching through Patchstack or an equivalent WordPress security service that ships mitigations for this advisory
Restrict admin-ajax.php access to authenticated non-Subscriber roles where feasible

bash

# Configuration example: identify vulnerable plugin version using WP-CLI
wp plugin get wallet-system-for-woocommerce --field=version
wp plugin update wallet-system-for-woocommerce