CVE-2024-43136: Sunshine Photo Cart Auth Bypass Vulnerability

CVE-2024-43136 Overview

CVE-2024-43136 is a Missing Authorization vulnerability [CWE-862] affecting the Sunshine Photo Cart plugin for WordPress. The flaw impacts all versions up to and including 3.2.1. An authenticated attacker with low privileges can reach functionality that should be restricted, leading to full compromise of confidentiality, integrity, and availability on the affected site.

Critical Impact
Authenticated attackers can bypass access controls in Sunshine Photo Cart through version 3.2.1, gaining the ability to invoke privileged plugin functionality over the network without user interaction.

Affected Products

Sunshine Photo Cart WordPress plugin, versions up to and including 3.2.1
WordPress sites running the sunshine-photo-cart plugin with any authenticated user role
Deployments that have not upgraded to a patched release above 3.2.1

Discovery Timeline

2024-11-01 - CVE-2024-43136 published to the National Vulnerability Database
2026-06-17 - Last updated in the NVD database

Technical Details for CVE-2024-43136

Vulnerability Analysis

The vulnerability is a broken access control issue in the Sunshine Photo Cart plugin. The plugin exposes actions that fail to verify whether the calling user holds the required capability or role. As a result, low-privileged authenticated users can invoke functionality reserved for administrators or shop managers.

Because the flaw affects both integrity and availability, an attacker can modify plugin data, alter shop configuration, or disrupt normal store operations. The network attack vector and low complexity make exploitation straightforward once an attacker obtains any authenticated session on the target WordPress site.

Root Cause

The root cause is a missing authorization check [CWE-862] on one or more plugin endpoints. The affected handlers likely rely on nonce validation or authentication alone without calling current_user_can() to verify the acting user's capability. This omission allows any logged-in user, including subscriber-level accounts created through open registration, to trigger privileged operations.

Attack Vector

Exploitation requires network access to the WordPress site and a valid low-privileged account. The attacker sends a crafted HTTP request to a vulnerable plugin action, typically an admin-ajax.php or REST endpoint exposed by sunshine-photo-cart. No user interaction is required, and the request executes with the plugin's intended privileged behavior. See the Patchstack Vulnerability Report for advisory details.

Detection Methods for CVE-2024-43136

Indicators of Compromise

Unexpected requests from subscriber or customer accounts to Sunshine Photo Cart admin-ajax actions or REST routes
Modifications to plugin settings, galleries, orders, or pricing that do not correspond to administrator activity
New or altered accounts, coupons, or downloadable content originating from non-administrative sessions
Presence of the sunshine-photo-cart plugin at version 3.2.1 or earlier in the WordPress plugin inventory

Detection Strategies

Inventory WordPress sites for the sunshine-photo-cart plugin and flag any instance at or below version 3.2.1
Correlate WordPress audit logs with web server access logs to identify low-privileged users invoking plugin admin actions
Alert on HTTP POST requests to wp-admin/admin-ajax.php with action parameters tied to Sunshine Photo Cart from non-admin roles

Monitoring Recommendations

Enable a WordPress activity log plugin to record capability-sensitive events and user role changes
Forward web server and WordPress logs to a centralized log platform for anomaly analysis across sessions and roles
Review outbound e-commerce transactions and gallery configuration changes for unauthorized modification

How to Mitigate CVE-2024-43136

Immediate Actions Required

Update Sunshine Photo Cart to a version later than 3.2.1 on every affected WordPress instance
Audit user accounts and remove or downgrade any suspicious low-privileged accounts created recently
Review recent plugin configuration, orders, and gallery changes for unauthorized modification
Rotate administrator and shop-manager credentials if compromise is suspected

Patch Information

The vendor addressed the missing authorization issue in a release above 3.2.1. Administrators should upgrade to the latest available version of sunshine-photo-cart from the WordPress plugin repository. Refer to the Patchstack Vulnerability Report for advisory and fix references.

Workarounds

Disable the Sunshine Photo Cart plugin until a patched version can be installed
Restrict new user registration on affected WordPress sites to reduce the attacker's ability to obtain a low-privileged account
Deploy a web application firewall rule that blocks unauthenticated or non-admin access to Sunshine Photo Cart admin-ajax and REST endpoints

bash

# Configuration example: check installed plugin version via WP-CLI
wp plugin get sunshine-photo-cart --field=version
wp plugin update sunshine-photo-cart