{"id":"CVE-2020-2503","aliases":["EUVD-2020-22296","GHSA-v96c-c8j8-qhm7"],"status":"published","title":"Stored cross-site scripting vulnerability in QES","description":"If exploited, this stored cross-site scripting vulnerability could allow remote attackers to inject malicious code in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.","severity":{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00789,"percentile":0.56579,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-749","CWE-79","CWE-80"],"published":"2020-12-24T01:39:08Z","modified":"2026-06-17T03:12:14Z","products":[{"vendor":"qnap","product":"qes"},{"vendor":"qnap systems inc.","product":"qes"}],"references":[{"url":"https://www.qnap.com/zh-tw/security-advisory/qsa-20-17","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2503"},{"url":"https://github.com/advisories/GHSA-v96c-c8j8-qhm7"}],"sources":{"cve":[{"id":"CVE-2020-2503","title":"Stored cross-site scripting vulnerability in QES","description":"If exploited, this stored cross-site scripting vulnerability could allow remote attackers to inject malicious code in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.","status":"published","published":"2020-12-24T01:39:08.389Z","modified":"2024-09-17T03:07:20.826Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-79","CWE-80","CWE-749"],"updated_at":"2026-11-02T14:35:51.206854Z"}],"euvd":[{"id":"EUVD-2020-22296","description":"If exploited, this stored cross-site scripting vulnerability could allow remote attackers to inject malicious code in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.","status":"published","published":"2020-12-24T01:39:08Z","modified":"2024-09-17T03:07:20Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:28:34.673232Z"}],"ghsa":[{"id":"GHSA-v96c-c8j8-qhm7","title":"If exploited, this stored cross-site scripting vulnerability could allow remote attackers to...","description":"If exploited, this stored cross-site scripting vulnerability could allow remote attackers to inject malicious code in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.","status":"published","published":"2022-05-24T17:37:12Z","modified":"2023-01-29T05:05:49Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:45:52.819939Z"}],"nvd":[{"id":"CVE-2020-2503","description":"If exploited, this stored cross-site scripting vulnerability could allow remote attackers to inject malicious code in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.","status":"published","published":"2020-12-24T02:15:12.547Z","modified":"2026-06-17T03:12:14.673Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"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":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79","CWE-80","CWE-749"],"updated_at":"2026-11-02T14:06:27.73474Z"}]}}