CVE-2025-52766: Printeers Print & Ship Auth Bypass Flaw

CVE-2025-52766 Overview

CVE-2025-52766 is a Missing Authorization vulnerability [CWE-862] in the Printeers Print & Ship WordPress plugin. The flaw affects all versions up to and including 1.17.0. Attackers with low-privilege authenticated access can exploit incorrectly configured access control security levels to perform actions outside their permission scope. The vulnerability is exploitable over the network without user interaction.

The issue impacts data integrity on affected WordPress installations running the plugin. Confidentiality and availability are not directly affected based on the CVSS vector. The vulnerability was published to the National Vulnerability Database (NVD) and documented in a Patchstack advisory.

Critical Impact
Authenticated attackers with low privileges can bypass access controls in the Printeers Print & Ship plugin to modify data or perform actions reserved for higher-privileged users, compromising the integrity of WordPress sites running versions through 1.17.0.

Affected Products

Printeers Print & Ship WordPress plugin versions through 1.17.0
WordPress sites with the invition-print-ship plugin installed
Any e-commerce or print fulfillment workflow relying on this plugin

Discovery Timeline

2026-06-02 - CVE-2025-52766 published to NVD
2026-06-02 - Last updated in NVD database

Technical Details for CVE-2025-52766

Vulnerability Analysis

The vulnerability stems from missing authorization checks within the Printeers Print & Ship plugin. The plugin exposes functionality without verifying whether the requesting user holds the required capability or role. This represents a classic broken access control flaw cataloged under [CWE-862] Missing Authorization.

Low-privileged authenticated users, such as subscribers or customers, can invoke endpoints that should be restricted to administrators or shop managers. The plugin trusts the request context rather than enforcing a capability check on the server side. This pattern is common in WordPress plugins that rely on nonce validation alone without paired current_user_can() checks.

The impact is limited to integrity. Attackers cannot directly read confidential data or take the site offline, but they can manipulate plugin-controlled records and workflows. In print fulfillment contexts, this could include altering orders, configuration values, or processing states.

Root Cause

The root cause is the absence or misconfiguration of authorization logic on plugin actions. Developers likely placed sensitive operations behind authentication but did not validate the user's role or capability before executing them. Any logged-in account can therefore reach privileged code paths.

Attack Vector

Exploitation requires a valid low-privilege account on the target WordPress site. The attacker sends crafted HTTP requests to plugin endpoints, AJAX handlers, or REST routes exposed by the invition-print-ship plugin. Because attack complexity is low and no user interaction is required, automated exploitation is feasible once an account is obtained. Refer to the Patchstack WordPress Vulnerability Advisory for additional technical detail.

Detection Methods for CVE-2025-52766

Indicators of Compromise

Unexpected modifications to Printeers Print & Ship plugin records, orders, or settings made by non-administrative accounts
HTTP POST or REST API requests to plugin endpoints originating from subscriber or customer-level sessions
WordPress audit log entries showing privileged plugin actions tied to low-privilege user IDs

Detection Strategies

Inspect web server access logs for requests to admin-ajax.php or REST routes referencing the invition-print-ship plugin from non-admin sessions
Correlate WordPress user role data with plugin activity to identify privilege mismatches
Deploy a Web Application Firewall (WAF) rule set that flags unauthenticated or low-privilege access to plugin administrative actions

Monitoring Recommendations

Enable WordPress activity logging that records plugin-level actions with user role context
Monitor for spikes in authenticated requests to plugin endpoints following the CVE publication
Alert on any creation of new low-privilege accounts followed by plugin-specific API calls

How to Mitigate CVE-2025-52766

Immediate Actions Required

Update the Printeers Print & Ship plugin to a version newer than 1.17.0 once the vendor publishes a fix
Audit existing user accounts and remove or downgrade any unnecessary low-privilege accounts that could be abused
Review plugin-managed records for unauthorized changes since the plugin was installed

Patch Information

At the time of NVD publication, the advisory lists affected versions through 1.17.0. Site administrators should consult the Patchstack WordPress Vulnerability Advisory and the official plugin repository for the latest patched release.

Workarounds

Temporarily disable the Printeers Print & Ship plugin if a patched version is not yet available
Restrict access to /wp-admin/admin-ajax.php and plugin REST endpoints via WAF rules until patched
Limit account self-registration on affected WordPress sites to reduce the attacker pool

bash

# Configuration example: disable the plugin via WP-CLI until a fix is applied
wp plugin deactivate invition-print-ship
wp plugin status invition-print-ship