{"id":"CVE-2025-57540","aliases":["EUVD-2025-27389","GHSA-2p4j-7hmq-hf5r"],"status":"published","title":"A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party field...","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.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00304,"percentile":0.23509,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-09-09T00:00:00Z","modified":"2026-11-08T00:10:00Z","products":[{"vendor":"proxmox","product":"virtual_environment"}],"references":[{"url":"https://github.com/khankishiyev-j/bug-bounty/blob/main/proxmox-xss","tags":["exploit","Exploit","Third Party Advisory"]},{"url":"https://www.youtube.com/watch?v=-wvkN-7oT5U","tags":["Broken Link"]},{"url":"https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/page-2#post-792010","tags":["Issue Tracking","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-57540"},{"url":"https://github.com/advisories/GHSA-2p4j-7hmq-hf5r"}],"sources":{"cve":[{"id":"CVE-2025-57540","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.","status":"published","published":"2025-09-09T00:00:00Z","modified":"2025-09-10T13:45:22.93Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:35.099955Z"}],"euvd":[{"id":"EUVD-2025-27389","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.","status":"published","published":"2025-09-09T00:00:00Z","modified":"2025-09-10T13:45:22Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:31:45.48357Z"}],"ghsa":[{"id":"GHSA-2p4j-7hmq-hf5r","title":"A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party field...","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.","status":"published","published":"2025-09-09T18:31:24Z","modified":"2025-09-10T15:32:20Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:03:33.757413Z"}],"nvd":[{"id":"CVE-2025-57540","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.","status":"published","published":"2025-09-09T17:16:10.78Z","modified":"2026-11-08T00:10:00.25Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-08T02:07:41.968385Z"}]}}