{"id":"CVE-2025-57540","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-57540","generatedAt":"2026-10-28T02:24:35.027Z","title":"A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party field within the Datacenter configuration of Proxmox Virtual Environment (PVE) 8.4.","description":"A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party field within the Datacenter configuration of Proxmox Virtual Environment (PVE) 8.4. Authenticated users can inject JavaScript code that is later executed in the browsers of users who view the configuration page, enabling client-side attacks.","published":"2025-09-09T17:16:11.000Z","lastModified":"2026-06-17T09:43:11.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["proxmox/virtual environment"],"epss":{"score":0.00292,"percentile":0.21622,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-792010","tags":["Issue Tracking","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.youtube.com/watch?v=-wvkN-7oT5U","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss","tags":["Exploit","Third Party Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-57540","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}