CVE-2025-31415 Overview
CVE-2025-31415 is a missing authorization vulnerability in the YayCommerce YayExtra plugin for WordPress. The flaw affects all versions up to and including 1.5.2. Authenticated attackers with low privileges can abuse incorrectly configured access control checks to perform actions restricted to higher-privileged roles. The weakness is categorized as broken access control [CWE-862]. Successful exploitation impacts confidentiality, integrity, and availability of the affected WooCommerce store extension.
Critical Impact
Authenticated users with low privileges can bypass authorization checks in YayExtra, leading to unauthorized data modification and potential disruption of WooCommerce checkout functionality.
Affected Products
- YayCommerce YayExtra plugin for WordPress
- YayExtra versions from n/a through <= 1.5.2
- WordPress sites running WooCommerce with YayExtra installed
Discovery Timeline
- 2025-04-01 - CVE-2025-31415 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-31415
Vulnerability Analysis
The YayExtra plugin extends WooCommerce checkout with additional custom fields and product options. The plugin exposes actions and endpoints intended for administrators without verifying the caller's capability or role. Attackers holding any authenticated account, such as a subscriber or customer, can invoke these actions and manipulate plugin state.
The attack path requires network access to the WordPress site and valid low-privilege credentials. No user interaction is required beyond a crafted request to the vulnerable endpoint. Because WordPress installations commonly permit open registration for customer accounts, the barrier to authenticated access is low on WooCommerce stores.
Root Cause
The root cause is missing authorization enforcement on plugin action handlers. The code fails to call current_user_can() checks or verify nonces tied to privileged capabilities before executing sensitive operations. This is a classic instance of [CWE-862] Missing Authorization, where authentication is validated but role-based access control is not.
Attack Vector
Exploitation occurs over the network against the WordPress admin-ajax or REST endpoints exposed by YayExtra. An attacker authenticates as a low-privilege user, then sends crafted requests targeting the plugin's action handlers. Because the plugin does not validate the caller's role, the server executes the requested operation. Refer to the Patchstack Vulnerability Report for endpoint-level details.
Detection Methods for CVE-2025-31415
Indicators of Compromise
- Unexpected changes to YayExtra plugin settings or checkout field configurations
- Requests to wp-admin/admin-ajax.php referencing YayExtra actions from non-administrator accounts
- New or modified WooCommerce order metadata originating from low-privilege sessions
Detection Strategies
- Inspect web server access logs for POST requests to YayExtra action handlers issued by subscriber or customer role sessions
- Correlate WordPress audit logs with plugin configuration diff snapshots to identify unauthorized modifications
- Alert on privilege mismatches where non-admin session cookies invoke administrative plugin actions
Monitoring Recommendations
- Enable a WordPress activity log plugin to record capability checks and settings changes
- Forward web access logs and WordPress audit events to a centralized log platform for retention and correlation
- Baseline normal YayExtra endpoint traffic and alert on deviations from low-privilege user IDs
How to Mitigate CVE-2025-31415
Immediate Actions Required
- Update YayExtra to a version above 1.5.2 once the vendor releases a patched build
- Audit WordPress user accounts and remove or disable inactive low-privilege accounts
- Restrict new user registration on WooCommerce stores where customer self-registration is not required
Patch Information
The vulnerability affects YayExtra versions up to and including 1.5.2. Site operators should monitor the Patchstack Vulnerability Report and the plugin vendor's changelog for the fixed release and apply the update promptly.
Workarounds
- Deactivate the YayExtra plugin until a patched version is installed
- Deploy a Web Application Firewall rule to block requests to YayExtra action handlers from non-administrator sessions
- Enforce strong authentication and rate limiting on wp-login.php to reduce the pool of usable low-privilege accounts
# Configuration example: temporarily deactivate YayExtra via WP-CLI
wp plugin deactivate yayextra
wp plugin status yayextra
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
