CVE-2025-22674: Product Blocks for WooCommerce XSS Flaw

CVE-2025-22674 Overview

CVE-2025-22674 is a stored Cross-Site Scripting (XSS) vulnerability in the Get Bowtied Product Blocks for WooCommerce WordPress plugin. The flaw stems from improper neutralization of user input during web page generation [CWE-79]. All plugin versions up to and including 1.9.1 are affected. An authenticated attacker with low privileges can inject persistent JavaScript payloads that execute in the browsers of site visitors and administrators when the affected pages render.

Critical Impact
Successful exploitation enables session theft, administrative account compromise, and drive-by malware delivery to WooCommerce shoppers viewing pages that render the malicious block content.

Affected Products

Get Bowtied Product Blocks for WooCommerce plugin, all versions through 1.9.1
WordPress sites running WooCommerce with the vulnerable plugin activated
Multi-author or multi-contributor WordPress deployments where lower-privileged users can edit product blocks

Discovery Timeline

2025-02-04 - CVE-2025-22674 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-22674

Vulnerability Analysis

The vulnerability is a stored XSS issue within the Product Blocks for WooCommerce plugin. Stored XSS occurs when unsanitized user input is written to persistent storage and later rendered in a page without proper output encoding. In this plugin, block attributes or content fields accept input from authenticated users without sufficient validation. The payload persists in the database and executes in the browser of every user who loads the affected page.

Because the CVSS vector indicates a scope change (S:C), the injected script executes in a security context different from the vulnerable component. This means the payload can affect administrative interfaces even when injected through a lower-privileged user role. User interaction is required, typically by having a victim visit a page that renders the malicious block.

Root Cause

The root cause is missing or inadequate input sanitization and output escaping in the plugin's block rendering pipeline. WordPress provides functions such as wp_kses_post(), esc_html(), and esc_attr() for contextual escaping. When these are omitted or applied inconsistently to block attributes, attacker-controlled HTML and JavaScript reach the DOM intact.

Attack Vector

The attack requires network access to the WordPress site and an authenticated account with permission to create or edit content using the plugin's blocks. The attacker embeds a JavaScript payload inside a block field, saves the content, and waits for other users to view the rendered page. Because the flaw is stored rather than reflected, no phishing lure is required beyond driving traffic to the affected page.

The vulnerability is documented in the Patchstack XSS Vulnerability Report. No public proof-of-concept exploit is currently available.

Detection Methods for CVE-2025-22674

Indicators of Compromise

Unexpected <script> tags, on* event handlers, or javascript: URIs stored in WordPress wp_posts content or wp_postmeta entries associated with Product Blocks output
Outbound requests from browsers loading WooCommerce pages to unfamiliar attacker-controlled domains
New administrative users, altered user roles, or unexpected password resets following visits to affected pages
Modified plugin or theme files timestamped after block content edits by low-privileged accounts

Detection Strategies

Audit database rows for the Product Blocks for WooCommerce plugin containing HTML event handlers or script tags
Review WordPress audit logs for content edits by Contributor, Author, or Shop Manager accounts that touched product block content
Inspect Content Security Policy (CSP) violation reports for inline script executions on WooCommerce pages

Monitoring Recommendations

Enable WordPress activity logging to capture post and block edits with user attribution
Monitor web server logs for administrative session cookies transmitted to external endpoints
Alert on privilege escalation events, particularly new users assigned the administrator role

How to Mitigate CVE-2025-22674

Immediate Actions Required

Deactivate the Product Blocks for WooCommerce plugin until a patched version is confirmed installed
Review all block content created or modified by non-administrator users for embedded scripts
Rotate credentials and invalidate active sessions for administrators who may have viewed injected content
Restrict block editing capabilities to trusted user roles until remediation is verified

Patch Information

At the time of the NVD entry, the advisory lists all versions through 1.9.1 as affected. Site operators should consult the Patchstack advisory and the vendor's plugin page for the latest fixed release, and update immediately once available.

Workarounds

Remove or deactivate the plugin from production WordPress installations until an updated release is applied
Deploy a web application firewall rule that blocks HTML event handlers and script tags submitted through block editor endpoints
Enforce a strict Content Security Policy that disallows inline scripts on public WooCommerce pages
Limit access to block editing capabilities using role management to trusted administrators only

bash

# Configuration example: restrict block editing via wp-cli and enforce CSP
wp user list --role=contributor --field=ID | xargs -I {} wp user set-role {} subscriber

# Apache header directive to enforce a restrictive CSP
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'"