CVE-2025-52783: WooCommerce Cart Button CSRF Vulnerability

CVE-2025-52783 Overview

CVE-2025-52783 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] in the themelocation Change Cart button Colors WooCommerce plugin (wc-style) for WordPress. The flaw allows an attacker to chain CSRF with Stored Cross-Site Scripting (XSS), enabling persistent script injection through forged administrative requests. The vulnerability affects all plugin versions from n/a through 1.0.

An attacker exploits this issue by tricking an authenticated administrator into visiting a malicious page. The forged request writes attacker-controlled JavaScript into plugin settings, which executes whenever the affected page renders.

Critical Impact

Successful exploitation results in Stored XSS in an administrative context, allowing session hijacking, content manipulation, and pivoting to further account compromise on WordPress sites running WooCommerce.

Affected Products

• WordPress plugin: themelocation Change Cart button Colors WooCommerce (wc-style)
• Affected versions: from n/a through 1.0
• Deployment context: WordPress sites running WooCommerce with the wc-style plugin installed

Discovery Timeline

• 2025-06-20 - CVE-2025-52783 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-52783

Vulnerability Analysis

The vulnerability combines two weaknesses in the wc-style plugin. The plugin lacks CSRF protections on its settings handler, accepting state-changing requests without validating a nonce or origin. The same handler stores user-supplied input without proper output encoding or input sanitization, producing a Stored XSS sink.

An attacker hosts a crafted page that submits a forged POST request to the plugin's settings endpoint. When an authenticated WordPress administrator visits the attacker's page, the browser submits the request using the administrator's session cookies. The plugin processes the request, persists the malicious payload, and later renders it as executable JavaScript in pages that display the stored configuration.

The impact is bounded by the user interaction requirement. An administrator must visit an attacker-controlled location while authenticated. Once that condition is met, the stored payload executes for any user who loads the affected page.

Root Cause

The root cause is missing CSRF token validation [CWE-352] on the plugin's configuration handler, compounded by insufficient sanitization of stored color or style input fields. WordPress provides wp_nonce_field() and check_admin_referer() APIs for CSRF protection, but the affected handler does not invoke them. Stored values are emitted into HTML or inline <style> contexts without context-aware escaping.

Attack Vector

The attack vector is network-based and requires user interaction. An attacker crafts an HTML page containing an auto-submitting form or fetch() request targeting the WordPress admin endpoint exposed by wc-style. The attacker delivers the link via phishing, comment spam, or a compromised third-party site. The scope changes because the injected script runs in the WordPress origin, granting access to authenticated user contexts beyond the vulnerable component.

No verified proof-of-concept code is published. See the Patchstack advisory for wc-style for additional technical context.

Detection Methods for CVE-2025-52783

Indicators of Compromise

• Unexpected <script> tags, javascript: URIs, or event handler attributes stored in wc-style plugin options within the WordPress wp_options table.
• Administrator-initiated POST requests to plugin settings endpoints with Referer headers pointing to external or untrusted domains.
• New or modified administrator accounts shortly after an admin session loaded a page rendering wc-style configuration.

Detection Strategies

• Audit the wp_options table for wc-style related keys and inspect values for HTML, JavaScript, or encoded payloads that should not appear in style configuration fields.
• Inspect web server access logs for POST requests to wp-admin/admin.php or admin-post.php referencing wc-style actions with off-site Referer headers.
• Monitor browser content security policy (CSP) violation reports on WordPress admin and storefront pages for inline script execution originating from cart styling components.

Monitoring Recommendations

• Enable WordPress audit logging to capture plugin option changes, attributing edits to user, IP, and session.
• Forward web server logs and WordPress audit events to a centralized log platform for correlation against authentication events.
• Alert on administrative configuration changes that include angle brackets, on*= event handlers, or javascript: schemes in option values.

How to Mitigate CVE-2025-52783

Immediate Actions Required

• Deactivate and remove the Change Cart button Colors WooCommerce (wc-style) plugin until a patched release is available.
• Review plugin option values in the database and remove any injected script content or unexpected HTML.
• Force a password reset and session invalidation for all WordPress administrator accounts that may have interacted with the plugin while it was active.

Patch Information

No fixed version is identified in the available advisory data. The vulnerability affects all versions through 1.0. Monitor the Patchstack advisory and the plugin's WordPress.org listing for a vendor patch.

Workarounds

• Remove the plugin entirely if a patched version is not available; the plugin provides cosmetic functionality that can be replaced with theme-level CSS.
• Restrict access to wp-admin by IP allowlist or VPN to reduce exposure of administrative endpoints to CSRF delivery vectors.
• Deploy a Web Application Firewall (WAF) rule that requires a valid WordPress nonce on POST requests targeting plugin admin endpoints.
• Enforce a Content Security Policy that blocks inline scripts in WordPress admin and front-end pages to limit Stored XSS execution.

# Remove the vulnerable plugin via WP-CLI
wp plugin deactivate wc-style
wp plugin delete wc-style

# Search the options table for suspicious stored payloads
wp db query "SELECT option_name, option_value FROM wp_options WHERE option_name LIKE '%wc-style%' OR option_name LIKE '%wc_style%';"