What the vulnerability does
01Description
The SUMO Reward Points plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting via the REST API endpoint `/wp-json/wc-srp/v1/earning` in versions up to, and including, 32.7.0. This is due to the `user_has_cap` filter in the `SRP_REST_Earning_Controller` class unconditionally granting the custom `rs_earning_read` capability to all users — including unauthenticated visitors — combined with missing sanitization of the `reason` parameter in the `create_items()` function and missing output escaping in the `column_default()` method of `SRP_Master_Log`. This makes it possible for unauthenticated attackers to inject arbitrary web scripts into the reward points log that will execute whenever an administrator accesses the Master Log or User Reward Points admin pages.
Explanation of Vulnerability in Simple Terms
02Summary
SUMO Reward Points for WooCommerce versions up to 32.7.0 contain a cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts. The vulnerability affects multiple users across the site due to its changed scope. No user interaction is required for exploitation. Update to a version newer than 32.7.0 to remediate.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that executes in other users' browsers and affects site functionality.
Potential impact on your site
04Site Impact
Visitors and customers may have malicious scripts run in their browsers, potentially stealing data or redirecting them to phishing sites.
Conditions required to exploit
05Prerequisites
None. The attacker needs only network access; no authentication or user interaction required.
Key dates
06Disclosure timeline
July 23, 2026
CVE published
