CVE-2026-7534
Received Received - Intake

Unauthenticated Stored XSS in SUMO Reward Points WordPress Plugin

Publication date: 2026-07-23

Last updated on: 2026-07-23

Assigner: Wordfence

Description
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.

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Meta Information

Published
2026-07-23
Last Modified
2026-07-23
Generated
2026-07-23
AI Q&A
2026-07-23
EPSS Evaluated
N/A
NVD
CVE-2026-7534
EUVD
EUVD-2026-47877

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
fantasticplugins sumo_reward_points to 32.7.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is an Unauthenticated Stored Cross-Site Scripting (XSS) flaw in the SUMO Reward Points WordPress plugin. It allows unauthenticated attackers to inject malicious scripts into the reward points log via the REST API endpoint. The issue stems from improper capability checks and lack of input sanitization in the plugin's code.

Detection Guidance

Check WordPress admin pages for unexpected scripts in the Master Log or User Reward Points sections. Inspect network traffic for requests to /wp-json/wc-srp/v1/earning with unusual parameters. Review plugin version in WordPress admin to confirm if SUMO Reward Points is version 32.7.0 or older.

Impact Analysis

Unauthenticated attackers can inject malicious scripts that execute when an administrator views the Master Log or User Reward Points pages. This could lead to unauthorized actions, data theft, or further compromise of the WordPress site if the admin's session is hijacked.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, potentially violating GDPR (data protection) and HIPAA (health data privacy) requirements. Stored XSS may expose sensitive user information, leading to compliance breaches if exploited.

Mitigation Strategies

Update the SUMO Reward Points plugin to the latest version beyond 32.7.0. If an update is unavailable, disable the plugin temporarily until a patch is released. Monitor admin pages for any signs of exploitation and review logs for unauthorized access.

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