SUMO Reward Points for WooCommerce <= 32.7.0 - Unauthenticated Stored Cross-Site Scripting via 'reason' Parameter
Strategic Overview
- Status
- Patched in 32.8.0
- Affected Plugin
- SUMO Reward Points for WooCommerce
- Affected Version
<= 32.7.0- CVSS
- 7.2High
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2026-7534
At a glance
CVE-2026-7534 is a high-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the SUMO Reward Points for WooCommerce WordPress plugin, affecting versions <= 32.7.0. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 32.8.0; sites on affected versions should update now. Disclosed July 2026, reported by Nguyen Cong Quang.
Vulnerability Overview
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.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
SUMO Reward Points for WooCommerce <= 32.7.0 carries this weakness at create_items(), and reaching it takes no account at all. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For SUMO Reward Points for WooCommerce the fix is 32.8.0: builds <= 32.7.0 are affected, anything from 32.8.0 onward is not.
Remediation
Update to version 32.8.0, or a newer patched version
How does WordSec protect against this?
Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: SUMO Reward Points for WooCommerce 32.8.0 closes this, and updating the plugin is the step that ends it.
- Firewall
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in SUMO Reward Points for WooCommerce
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C