CVE-2025-53271: WooCommerce Order Filters CSRF Vulnerability

CVE-2025-53271 Overview

CVE-2025-53271 is a Cross-Site Request Forgery (CSRF) vulnerability in the Anton Bond Additional Order Filters for WooCommerce WordPress plugin. The flaw affects all versions up to and including 1.22. Attackers can leverage the CSRF weakness to plant Stored Cross-Site Scripting (XSS) payloads into the WooCommerce administrative interface. Successful exploitation requires tricking an authenticated administrator into visiting an attacker-controlled page. The injected script then executes in the browser context of any subsequent administrator viewing the affected component. This vulnerability is classified under CWE-352.

Critical Impact

A successful exploit allows unauthenticated attackers to persist JavaScript payloads in the WooCommerce admin context, enabling session theft, administrative account takeover, and malicious modification of store data.

Affected Products

• Anton Bond Additional Order Filters for WooCommerce plugin for WordPress
• All plugin versions from initial release through 1.22
• WordPress sites running WooCommerce with this plugin installed

Discovery Timeline

• 2025-06-27 - CVE-2025-53271 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-53271

Vulnerability Analysis

The vulnerability combines two distinct weaknesses into a single attack chain. The plugin processes administrative state-changing requests without verifying a WordPress nonce or other anti-CSRF token. The same request handler also fails to sanitize or encode user-supplied input before persisting it to the database. An attacker crafts a malicious web page or email containing a forged request to the vulnerable endpoint. When an authenticated administrator interacts with the attacker's bait, the browser submits the forged request using the admin's session cookies. The plugin accepts the request and stores the attacker-controlled payload, which later renders as executable JavaScript in the admin panel.

Root Cause

The root cause is the absence of nonce verification on plugin request handlers, compounded by missing output encoding on stored values. WordPress provides wp_verify_nonce() and check_admin_referer() for CSRF protection, but the plugin does not invoke these checks consistently. Stored input is later echoed into HTML contexts without esc_html() or esc_attr() encoding, producing the Stored XSS condition.

Attack Vector

The attack requires user interaction from an authenticated administrator. The attacker hosts a page containing a forged form or image tag pointing at the vulnerable plugin endpoint. When the admin visits the page while logged into WordPress, the browser submits the request automatically. The payload is stored and triggers on subsequent admin views. The vulnerability is network-reachable and does not require attacker authentication.

For full technical context, see the Patchstack WooCommerce CSRF Vulnerability advisory.

Detection Methods for CVE-2025-53271

Indicators of Compromise

• Unexpected <script> tags, event handlers, or encoded JavaScript payloads stored in WooCommerce order filter configuration fields
• WordPress access logs showing POST requests to plugin endpoints with HTTP Referer headers pointing to external or unrelated domains
• New or modified administrator accounts created shortly after admin sessions visited external links

Detection Strategies

• Audit the WordPress wp_options table and plugin-specific tables for entries containing HTML or JavaScript syntax in fields that should hold plain text
• Deploy a Web Application Firewall (WAF) rule that inspects POST bodies to plugin endpoints for script tags, javascript: URIs, and common XSS payloads
• Review browser console errors and Content Security Policy (CSP) reports from admin sessions for unexpected inline script execution

Monitoring Recommendations

• Enable WordPress activity logging to capture all administrative configuration changes made through the plugin
• Forward webserver and WordPress audit logs to a centralized SIEM for correlation of off-origin Referer headers with admin POST requests
• Monitor file integrity on wp-content/plugins/additional-order-filters-for-woocommerce/ for unauthorized modifications

How to Mitigate CVE-2025-53271

Immediate Actions Required

• Deactivate the Additional Order Filters for WooCommerce plugin until a patched release is confirmed by the vendor
• Force a password reset for all WordPress administrator accounts and invalidate active sessions
• Inspect plugin-stored configuration values and remove any entries containing HTML or JavaScript content
• Restrict access to /wp-admin/ by IP allowlist where operationally feasible

Patch Information

At the time of NVD publication, no fixed version is listed beyond 1.22. Site administrators should monitor the Patchstack advisory and the official WordPress plugin repository for an updated release that introduces nonce verification and output encoding.

Workarounds

• Remove the plugin entirely if order filtering functionality is not business-critical
• Deploy a virtual patch via WAF that blocks POST requests to the plugin endpoint when the Referer header is missing or off-origin
• Enforce a strict Content Security Policy on /wp-admin/ to block inline script execution and limit the impact of injected payloads
• Require administrators to use a separate browser profile or session for WordPress administration to reduce CSRF exposure

# Example Apache WAF rule to block off-origin POSTs to the plugin endpoint
SecRule REQUEST_METHOD "@streq POST" \
  "id:1005327,phase:1,deny,status:403,\
   chain,msg:'Block off-origin POST to vulnerable WooCommerce plugin'"
  SecRule REQUEST_URI "@contains additional-order-filters-for-woocommerce" \
    "chain"
    SecRule REQUEST_HEADERS:Referer "!@beginsWith https://your-site.example/" "t:none"