Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Open Source Point of Sale application prior to version 3.4.3. It occurs in the Daily Sales management table where the customer_name column is configured to render content as raw HTML without escaping. An attacker who has customer management permissions can inject malicious JavaScript code into a customer's first_name or last_name fields. This injected script then executes in the browsers of any users who view the Daily Sales page, potentially compromising their security.

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Impact Analysis

The impact of this vulnerability includes the execution of arbitrary JavaScript code in the browsers of users who view the affected Daily Sales page. This can lead to unauthorized actions such as stealing session cookies, redirecting users to malicious sites, or performing actions on behalf of the user without their consent. Since the attacker needs customer management permissions to inject the script, the risk is somewhat limited to users with those privileges, but any user viewing the page can be affected.

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Mitigation Strategies

To mitigate this vulnerability, you should upgrade Open Source Point of Sale to version 3.4.3 or later, where the Stored Cross-Site Scripting (XSS) issue in the Daily Sales management table has been fixed.

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