Periscope BuySpeed version 14.5 ist anfällig für gespeichert Cross-Site Scripting

The primary impact of CVE-2020-9056 is the potential for an attacker to execute arbitrary JavaScript code within the context of a user's browser session. This can be leveraged to perform various malicious actions, including redirecting users to phishing sites, stealing session cookies to hijack accounts, or extracting sensitive data displayed on the page. Because the vulnerability requires authentication, an attacker would need to have valid credentials to exploit it. The scope of impact is limited to users interacting with the vulnerable BuySpeed application.

Organizations utilizing Periscope BuySpeed version 14.5, particularly those with local authenticated users accessing the application, are at risk. Shared hosting environments where multiple users share the same BuySpeed instance are also potentially vulnerable.

1. 2020-04-10Disclosure

   disclosure

1. Reserviert2020-02-18
2. Veröffentlicht2020-04-10
3. Geändert2024-09-17
4. EPSS aktualisiert2026-04-02

The recommended mitigation for CVE-2020-9056 is to upgrade to BuySpeed version 15.3 or later, which contains the necessary fix. If upgrading immediately is not feasible, consider implementing input validation and output encoding on user-supplied data to prevent the injection of malicious scripts. While not a complete solution, this can reduce the attack surface. Regularly review and sanitize user-generated content within the BuySpeed application to identify and remove any potentially malicious scripts. After upgrading, confirm the fix by attempting to inject a simple JavaScript payload and verifying that it is not executed.