CVE-2025-15482: Chapa Payment Gateway Information Disclosure

CVE-2025-15482 Overview

The Chapa Payment Gateway Plugin for WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.0.3 via the chapa_proceed WooCommerce API endpoint. This vulnerability allows unauthenticated attackers to extract sensitive data including the merchant's Chapa secret API key, potentially leading to unauthorized payment processing and financial fraud.

Critical Impact

Unauthenticated attackers can access merchant API credentials through an exposed WooCommerce endpoint, enabling potential unauthorized payment transactions and financial data theft.

Affected Products

• Chapa Payment Gateway Plugin for WooCommerce versions up to and including 1.0.3
• WordPress sites using the vulnerable plugin versions
• WooCommerce stores with Chapa payment integration enabled

Discovery Timeline

• 2026-02-04 - CVE CVE-2025-15482 published to NVD
• 2026-02-04 - Last updated in NVD database

Technical Details for CVE-2025-15482

Vulnerability Analysis

This vulnerability is classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The Chapa Payment Gateway Plugin for WooCommerce fails to properly protect sensitive merchant credentials when processing requests through its WooCommerce API endpoint.

The vulnerability exists in the chapa_proceed endpoint implementation within class-waf-wc-chapa-gateway.php. When this endpoint is accessed, the plugin inadvertently exposes the merchant's Chapa secret API key to unauthenticated users. This sensitive information exposure occurs because the endpoint lacks proper authentication checks and access controls before returning configuration data that includes the secret API key.

The attack can be executed remotely over the network without any user interaction or privileges required. An attacker simply needs to make a crafted request to the vulnerable API endpoint to retrieve the exposed credentials.

Root Cause

The root cause of this vulnerability lies in improper access control implementation within the chapa_proceed WooCommerce API endpoint handler. The code at line 418 of class-waf-wc-chapa-gateway.php fails to verify user authentication or implement proper authorization checks before processing requests that return sensitive configuration data.

This design flaw allows any unauthenticated user to access an endpoint that should only be available to authenticated administrators or internal system processes. The secret API key, which should never be exposed to front-end requests, is included in the response data without proper filtering or access restrictions.

Attack Vector

The attack vector for this vulnerability is network-based and requires no authentication, user interaction, or special privileges. An attacker can exploit this vulnerability through the following mechanism:

1. The attacker identifies a WordPress site using the Chapa Payment Gateway Plugin for WooCommerce
2. The attacker crafts a request to the chapa_proceed WooCommerce API endpoint
3. Due to missing authentication checks, the endpoint processes the request
4. The response includes sensitive configuration data containing the merchant's Chapa secret API key
5. The attacker can then use the stolen API key to perform unauthorized payment operations

For technical details regarding the vulnerable code implementation, refer to the WordPress Plugin Code Reference and the Wordfence Vulnerability Intelligence report.

Detection Methods for CVE-2025-15482

Indicators of Compromise

• Unusual or unexpected requests to the chapa_proceed WooCommerce API endpoint from unknown IP addresses
• Multiple rapid requests to payment gateway endpoints without corresponding legitimate transactions
• Evidence of API key usage from unfamiliar geographic locations or IP ranges
• Unauthorized payment transactions or refunds processed through the Chapa payment gateway

Detection Strategies

• Monitor web server access logs for requests targeting /wc-api/chapa_proceed or similar endpoint patterns
• Implement rate limiting and anomaly detection on WooCommerce API endpoints
• Configure Web Application Firewall (WAF) rules to alert on suspicious payment gateway API access patterns
• Review Chapa payment gateway account activity for signs of unauthorized API key usage

Monitoring Recommendations

• Enable detailed logging for all WooCommerce API endpoint access
• Set up real-time alerts for unusual traffic patterns to payment-related endpoints
• Regularly audit Chapa merchant dashboard for unexpected API activity or unauthorized transactions
• Implement SentinelOne Singularity™ Platform for endpoint protection and behavioral analysis of web server processes

How to Mitigate CVE-2025-15482

Immediate Actions Required

• Update the Chapa Payment Gateway Plugin for WooCommerce to a patched version immediately if available
• If no patch is available, consider temporarily disabling the plugin until a fix is released
• Rotate your Chapa secret API key through the Chapa merchant dashboard immediately
• Review payment transaction history for any unauthorized or suspicious activity
• Implement IP-based access restrictions to WooCommerce API endpoints if possible

Patch Information

Organizations using the Chapa Payment Gateway Plugin for WooCommerce should check for updates through the WordPress plugin repository. Monitor the Wordfence Vulnerability Intelligence page for updates on patch availability and remediation guidance. If a patched version is not yet available, implementing the workarounds below is strongly recommended.

Workarounds

• Temporarily disable the Chapa Payment Gateway Plugin until a security patch is released
• Implement Web Application Firewall rules to block unauthorized access to the chapa_proceed endpoint
• Restrict access to WooCommerce API endpoints using server-level IP allowlisting
• Consider using an alternative payment gateway until the vulnerability is addressed

# Example: Apache .htaccess rule to restrict access to vulnerable endpoint
# Add to WordPress root .htaccess file

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{QUERY_STRING} wc-api=chapa_proceed [NC]
RewriteCond %{REMOTE_ADDR} !^192\.168\.1\. 
RewriteRule ^.*$ - [F,L]
</IfModule>