CVE-2021-4406

{"id": "CVE-2021-4406", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.3}, {"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.2}]}, "published": "2023-07-10T16:15:47.747", "references": [{"url": "https://csirt.divd.nl/CVE-2021-4406", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://csirt.divd.nl/DIVD-2021-00020/", "source": "[email protected]"}, {"url": "https://www.osnexus.com/products/software-defined-storage", "tags": ["Product"], "source": "[email protected]"}, {"url": "https://csirt.divd.nl/CVE-2021-4406", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.divd.nl/DIVD-2021-00020", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.osnexus.com/products/software-defined-storage", "tags": ["Product"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://csirt.divd.nl/cves/CVE-2021-4406/", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-77"}]}, {"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-77"}]}], "descriptions": [{"lang": "en", "value": "An authenticated attacker is able to create alerts that trigger a stored XSS attack.\n\nPOC\n\n\n * go to the alert manager\n\n\n * open the ITSM tab\n * add a webhook with the URL/service token value \n\n'\t-h\t&&\tid\t|\ttee\t/tmp/ttttttddddssss\t#' (whitespaces are tab characters)\n\n\n * click add\n\n\n * click apply\n\n\n * create a test alert\n\n\n * The test alert will run the command \n\n\u201cid\t|\ttee\t/tmp/ttttttddddssss\u201d as root.\n\n\n * after the test alert inspect \n\n/tmp/ttttttddddssss it'll contain the ids of the root user."}], "lastModified": "2025-09-24T14:15:45.487", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5E101217-36C7-4C28-8C61-7744481D2D0E", "versionEndExcluding": "6.0.0.355"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}