Cross-Site Scripting (XSS) attacks are a type of injection, in which malicious scripts are injected into otherwise benign and trusted websites. XSS attacks occur when an attacker uses a web application to send malicious code, generally in the form of a browser side script, to a different end user. Flaws that allow these attacks to succeed are quite widespread and occur anywhere a web application uses input from a user within the output it generates without validating or encoding it.
Penetration tester found that Alfresco CMS version (v.5.2.0) affected by CVE-2020-18327 which may allow authenticated user (administrator) performed reflected XSS via the "action" parameter in the "alfresco/s/admin/admin-nodebrowser" API.
1. Steal victim user session cookies.
2. Perform any action within the application that the user can perform.
3. View any information that the user is able to view.
4. Modify any information that the user is able to modify.
5. Initiate interactions with other application users, including malicious attacks, that will appear to originate from the initial victim user.