{"id":"CVE-2025-56534","aliases":["EUVD-2025-209587","GHSA-mcv5-xfx5-62xf","UBUNTU-CVE-2025-56534"],"status":"published","title":"A cross-site scripting (XSS) vulnerability in the custom authenticator driver of opennebula v6.10...","description":"A cross-site scripting (XSS) vulnerability in the custom authenticator driver of opennebula v6.10.0.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00185,"percentile":0.08104,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-79"],"published":"2026-04-29T00:00:00Z","modified":"2026-10-15T19:10:00Z","exploits":[{"source":"pocgithub","id":"MarkArtamonov/OpenNebula-CVE-2025-56534","title":"MarkArtamonov/OpenNebula-CVE-2025-56534","date":"2026-04-28","url":"https://github.com/MarkArtamonov/OpenNebula-CVE-2025-56534"}],"affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"opennebula","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.1-4.2build1","4.12.3+dfsg-3","4.12.3+dfsg-3build1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"opennebula","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.3+dfsg-3.1","4.12.3+dfsg-3.1build1"]}],"products":[{"vendor":"opennebula","product":"opennebula"}],"references":[{"url":"https://opennebula.io/opennebula-7/","tags":["Product"]},{"url":"https://github.com/MarkArtamonov/OpenNebula-CVE-2025-56534","tags":["exploit","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-56534"},{"url":"https://opennebula.io/opennebula-7"},{"url":"https://github.com/advisories/GHSA-mcv5-xfx5-62xf"},{"url":"https://ubuntu.com/security/CVE-2025-56534","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-56534","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-56534","description":"A cross-site scripting (XSS) vulnerability in the custom authenticator driver of opennebula v6.10.0.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.","status":"published","published":"2026-04-29T00:00:00Z","modified":"2026-04-29T16:24:39.575Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:26.64278Z"}],"euvd":[{"id":"EUVD-2025-209587","description":"A cross-site scripting (XSS) vulnerability in the custom authenticator driver of opennebula v6.10.0.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.","status":"published","published":"2026-04-29T00:00:00Z","modified":"2026-04-29T16:24:39Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:05:19.555165Z"}],"ghsa":[{"id":"GHSA-mcv5-xfx5-62xf","title":"A cross-site scripting (XSS) vulnerability in the custom authenticator driver of opennebula v6.10...","description":"A cross-site scripting (XSS) vulnerability in the custom authenticator driver of opennebula v6.10.0.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.","status":"published","published":"2026-04-29T18:31:34Z","modified":"2026-04-29T18:31:41Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:07:51.219984Z"}],"nvd":[{"id":"CVE-2025-56534","description":"A cross-site scripting (XSS) vulnerability in the custom authenticator driver of opennebula v6.10.0.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.","status":"published","published":"2026-04-29T16:16:21.477Z","modified":"2026-10-15T19:10:00.173Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:02.090779Z"}],"osv":[{"id":"UBUNTU-CVE-2025-56534","description":"A cross-site scripting (XSS) vulnerability in the custom authenticator driver of opennebula v6.10.0.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.","status":"published","published":"2026-04-29T16:16:00Z","modified":"2026-09-16T14:01:29.431958587Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:55:50.817402Z"}]}}