CVE-2025-46465: Print Science Designer CSRF Vulnerability

CVE-2025-46465 Overview

CVE-2025-46465 is a Cross-Site Request Forgery (CSRF) vulnerability in the John Weissberg Print Science Designer plugin for WordPress. The flaw affects all versions up to and including 1.3.155. Attackers can leverage the CSRF weakness to trigger Stored Cross-Site Scripting (XSS), injecting persistent malicious scripts into the WordPress site. Exploitation requires a privileged user to visit an attacker-controlled page while authenticated. Successful exploitation results in script execution within the WordPress administrative context, enabling session hijacking, content manipulation, and downstream attacks against site visitors.

Critical Impact

Authenticated administrators tricked into visiting a malicious URL can unknowingly persist attacker-controlled JavaScript into the WordPress site, affecting all subsequent visitors.

Affected Products

• John Weissberg Print Science Designer (print-science-designer) WordPress plugin
• All versions from n/a through 1.3.155
• WordPress sites with the plugin active and accessible administrative users

Discovery Timeline

• 2025-04-24 - CVE-2025-46465 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-46465

Vulnerability Analysis

The vulnerability combines two flaws: missing CSRF protection [CWE-352] and insufficient output sanitization that produces Stored XSS. The Print Science Designer plugin exposes state-changing endpoints that do not validate WordPress nonces or verify request origin. An attacker crafts a malicious page that issues a forged request to the plugin while the victim holds an authenticated WordPress session. The plugin processes the forged request and stores attacker-supplied input without sanitization. The stored payload executes as JavaScript when any user later views the affected plugin page or rendered output.

Root Cause

The root cause is the absence of anti-CSRF tokens on plugin actions that accept and persist user input. WordPress provides the wp_nonce_field() and check_admin_referer() primitives for this purpose, but the affected handlers do not invoke them. Compounding the issue, stored values are echoed into HTML without escaping through functions such as esc_html() or esc_attr(), allowing injected <script> tags or event handlers to execute.

Attack Vector

Exploitation is network-based and requires user interaction. The attacker hosts a page containing an auto-submitting HTML form or image tag that targets a vulnerable plugin endpoint on the victim's WordPress site. When a logged-in administrator browses the malicious page, the browser automatically attaches the WordPress session cookie to the cross-origin request. The forged request persists JavaScript in the plugin's data store. Subsequent page loads execute the payload in the browser of any user accessing the affected view, leading to cookie theft, privileged action abuse, or redirection to attacker infrastructure.

No public proof-of-concept code is available. For technical details, see the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-46465

Indicators of Compromise

• Unexpected <script> tags, inline event handlers, or external script references inside Print Science Designer configuration records or rendered plugin output.
• WordPress admin POST requests to plugin endpoints with Referer headers pointing to external or unrelated domains.
• New or modified plugin entries authored at times not aligned with legitimate administrator activity.

Detection Strategies

• Review the WordPress database tables used by print-science-designer for HTML or JavaScript content where plain text is expected.
• Inspect web server access logs for cross-origin POST requests to plugin handlers without a same-origin Referer.
• Run client-side content scanners against rendered plugin pages to identify injected scripts or suspicious DOM nodes.

Monitoring Recommendations

• Enable WordPress audit logging to track administrator actions and plugin configuration changes.
• Alert on outbound browser traffic from administrators to unrecognized domains immediately following admin panel access.
• Monitor Content Security Policy (CSP) violation reports for unexpected inline script execution on admin and public pages.

How to Mitigate CVE-2025-46465

Immediate Actions Required

• Deactivate the Print Science Designer plugin until a fixed version is installed if administrative use is not essential.
• Audit existing plugin records and remove any stored HTML or JavaScript that should not be present.
• Force a password reset and session invalidation for all WordPress administrators if compromise is suspected.

Patch Information

At the time of publication, the vendor advisory listed by Patchstack indicates the issue affects versions through 1.3.155. Administrators should monitor the Patchstack Vulnerability Report and the WordPress plugin repository for an updated release that adds nonce validation and output escaping, then upgrade promptly.

Workarounds

• Restrict access to /wp-admin/ by IP address using web server or firewall rules to limit CSRF exposure.
• Deploy a web application firewall rule that blocks state-changing requests to plugin endpoints lacking a valid WordPress nonce parameter.
• Enforce a strict Content Security Policy that disallows inline scripts on WordPress admin and front-end pages.
• Require administrators to use a dedicated browser profile for WordPress management to reduce cross-site request exposure.

# Example: temporarily disable the vulnerable plugin via WP-CLI
wp plugin deactivate print-science-designer

# Verify plugin status
wp plugin status print-science-designer