What the vulnerability does
01Description
The CorvusPay WooCommerce Payment Gateway plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'approval_code' parameter in all versions up to, and including, 2.7.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The unauthenticated REST endpoint POST /wp-json/corvuspay/success/ is registered with permission_callback set to __return_true, and although a signature validation step exists it only logs the result without halting execution, meaning an attacker can supply a completely arbitrary signature and have a malicious approval_code stored in the database unchallenged.
Explanation of Vulnerability in Simple Terms
02Summary
CorvusPay WooCommerce Payment Gateway versions 2.7.4 and earlier contain a cross-site scripting (XSS) vulnerability that allows unauthenticated attackers to inject malicious scripts. The vulnerability can be exploited over the network without user interaction, affecting both the vulnerable component and other parts of the site. Site administrators should update to a version newer than 2.7.4.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that executes in visitors' browsers and affects other site components.
Potential impact on your site
04Site Impact
Visitors' browsers could execute attacker-controlled scripts, potentially stealing session tokens, payment data, or redirecting to phishing pages.
Conditions required to exploit
05Prerequisites
None. The attacker needs only network access; no authentication or user interaction required.
Key dates
06Disclosure timeline
July 11, 2026
CVE published
July 13, 2026
Record updated
