An XSS vulnerability exists in open-webui/open-webui versions <= 0.3.8, specifically in the function that constructs the HTML for tooltips. This vulnerability allows attackers to perform operations with the victim's privileges, such as stealing chat history, deleting chats, and escalating their own account to an admin if the victim is an admin.
CVE ID: CVE-2024-8017
CVSS Base Severity: CRITICAL
CVSS Base Score: 9.0
CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Vendor: open-webui
Product: open-webui/open-webui
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 10.7% (scored less or equal to compared to others)
EPSS Date: 2025-04-18 (when was this score calculated)