{"id":"CVE-2025-57539","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-57539","generatedAt":"2026-10-28T05:01:35.331Z","title":"A stored cross-site scripting (XSS) vulnerability in the U2F Origin field of the Datacenter configuration in Proxmox Virtual Environment (PVE) 8.4 allows authenticated users to store malicious input.","description":"A stored cross-site scripting (XSS) vulnerability in the U2F Origin field of the Datacenter configuration in Proxmox Virtual Environment (PVE) 8.4 allows authenticated users to store malicious input. The payload is rendered unsafely in the Web UI and executed when viewed by other users, potentially leading to session hijacking or other 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":0.21686,"date":"2026-10-27","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-2025-57539","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."}