{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-126269",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-11-10T20:13:22.557Z",
        "datePublished": "2026-11-13T09:36:47.840Z",
        "dateUpdated": "2026-11-13T09:36:47.840Z"
    },
    "containers": {
        "cna": {
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                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-11-13T09:36:47.840Z"
            },
            "datePublic": "2026-10-27T00:00:00.000Z",
            "title": "NocoDB before 2026.09.0 Stored XSS via Attachment MIME Type",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "NocoDB before 2026.09.0 contains a stored cross-site scripting vulnerability that allows authenticated Editor users to execute scripts by storing crafted attachment MIME types like text/html;image/png. Attackers can write the value through the records API so the /dltemp signed URL serves HTML inline, stealing session tokens from localStorage to impersonate victims."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "cweId": "CWE-79",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "nocodb",
                    "product": "nocodb",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "custom",
                            "lessThan": "2026.09.0"
                        },
                        {
                            "version": "2026.09.0",
                            "status": "unaffected",
                            "versionType": "custom"
                        }
                    ]
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                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:nocodb:nocodb:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "2026.09.0"
                                }
                            ]
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                    ]
                }
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            "metrics": [
                {
                    "format": "CVSS",
                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 9.3,
                        "baseSeverity": "CRITICAL"
                    }
                },
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                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
                        "attackVector": "NETWORK",
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                        "privilegesRequired": "LOW",
                        "userInteraction": "REQUIRED",
                        "scope": "CHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "NONE",
                        "baseScore": 8.7,
                        "baseSeverity": "HIGH"
                    }
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            ],
            "references": [
                {
                    "url": "https://github.com/nocodb/nocodb/security/advisories/GHSA-3f7w-wqf7-786q",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "name": "GitHub Security Advisory (GHSA-3f7w-wqf7-786q)"
                },
                {
                    "name": "VulnCheck Advisory: NocoDB before 2026.09.0 Stored XSS via Attachment MIME Type",
                    "tags": [
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                    ],
                    "url": "https://www.vulncheck.com/advisories/nocodb-before-2026.09.0-stored-xss-via-attachment-mime-type"
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                {
                    "lang": "en",
                    "value": "PratibhaDevi29",
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                }
            ],
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                "engine": "vulncheck-endgame"
            }
        }
    }
}