{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-18478",
        "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
        "state": "PUBLISHED",
        "assignerShortName": "CERT-PL",
        "dateReserved": "2026-07-31T11:05:25.198Z",
        "datePublished": "2026-08-10T13:00:16.854Z",
        "dateUpdated": "2026-08-10T17:58:41.118Z"
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                "dateUpdated": "2026-08-10T13:00:16.854Z"
            },
            "title": "Stored XSS in Magnolia CMS",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-79",
                            "description": "CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-592",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-592 Stored XSS"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Magnolia DXP",
                    "product": "Magnolia CMS",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "6.3.0",
                            "lessThan": "6.3.10",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Magnolia CMS is vulnerable to Stored XSS in import functionality. An attacker with editor privileges can inject arbitrary HTML and JS into the name of uploaded image, which will be rendered/executed when opening uploaded image.\n\n\n\n\nThe issue was fixed in version 6.3.10",
                    "supportingMedia": [
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                            "type": "text/html",
                            "base64": false,
                            "value": "<div>Magnolia CMS is vulnerable to Stored XSS in import functionality. An attacker with editor privileges can inject arbitrary&nbsp;<span>HTML and JS into the name of uploaded image, which w</span><span>ill be rendered/executed when opening uploaded image.</span></div><div><br></div><div>The issue was fixed in version 6.3.10</div>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://cert.pl/en/posts/2026/08/CVE-2026-18478",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://docs.magnolia-cms.com/product-docs/6.3/releases/release-notes-for-magnolia-cms-6.3.10/",
                    "tags": [
                        "release-notes"
                    ]
                },
                {
                    "url": "https://www.magnolia-cms.com/",
                    "tags": [
                        "product"
                    ]
                }
            ],
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                            "lang": "en",
                            "value": "GENERAL"
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                    ],
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "NONE",
                        "subConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "NONE",
                        "subIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 5.1,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Kacper Paluch",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Łukasz Sobański",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
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            {
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                            "content": {
                                "timestamp": "2026-08-10T17:58:32.344363Z",
                                "id": "CVE-2026-18478",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
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                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-10T17:58:41.118Z"
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}