{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-42573",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-04-28T17:26:12.084Z",
        "datePublished": "2026-06-09T16:21:29.313Z",
        "dateUpdated": "2026-07-15T00:57:09.078Z"
    },
    "containers": {
        "cna": {
            "title": "Svelte: XSS via DOM Clobbering of Internal Framework State",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "lang": "en",
                            "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/sveltejs/svelte/security/advisories/GHSA-rcqx-6q8c-2c42",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/sveltejs/svelte/security/advisories/GHSA-rcqx-6q8c-2c42"
                },
                {
                    "name": "https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7"
                }
            ],
            "affected": [
                {
                    "vendor": "sveltejs",
                    "product": "svelte",
                    "versions": [
                        {
                            "version": "< 5.55.7",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-06-09T16:21:29.313Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Svelte is a performance oriented web framework. Prior to version 5.55.7, Svelte was vulnerable to DOM clobbering of its internal framework state on elements, potentially leading to XSS attacks. This issue has been patched in version 5.55.7."
                }
            ],
            "source": {
                "advisory": "GHSA-rcqx-6q8c-2c42",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-09T18:25:38.450512Z",
                                "id": "CVE-2026-42573",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-09T18:25:49.121Z"
                }
            },
            {
                "affected": [
                    {
                        "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                        "cpes": [
                            "cpe:/a:redhat:podman_desktop:1"
                        ],
                        "defaultStatus": "unaffected",
                        "packageName": "rh-podman-desktop.git",
                        "product": "Red Hat Build of Podman Desktop",
                        "vendor": "Red Hat"
                    }
                ],
                "datePublic": "2026-06-09T16:21:29.313Z",
                "descriptions": [
                    {
                        "lang": "en",
                        "value": "A flaw was found in Svelte, a web framework. An attacker could exploit a DOM clobbering vulnerability, which allows manipulation of the Document Object Model (DOM) to overwrite internal framework state on elements. This could potentially lead to Cross-Site Scripting (XSS) attacks, enabling the attacker to inject malicious scripts into web pages viewed by other users."
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "content": {
                                "namespace": "https://access.redhat.com/security/updates/classification/",
                                "value": "Important"
                            },
                            "type": "Red Hat severity rating"
                        }
                    },
                    {
                        "cvssV3_1": {
                            "attackComplexity": "LOW",
                            "attackVector": "NETWORK",
                            "availabilityImpact": "NONE",
                            "baseScore": 8.1,
                            "baseSeverity": "HIGH",
                            "confidentialityImpact": "HIGH",
                            "integrityImpact": "HIGH",
                            "privilegesRequired": "NONE",
                            "scope": "UNCHANGED",
                            "userInteraction": "REQUIRED",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
                            "version": "3.1"
                        },
                        "format": "CVSS"
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "cweId": "CWE-79",
                                "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                                "lang": "en",
                                "type": "CWE"
                            }
                        ]
                    }
                ],
                "references": [
                    {
                        "tags": [
                            "vdb-entry",
                            "x_refsource_REDHAT"
                        ],
                        "url": "https://access.redhat.com/security/cve/CVE-2026-42573"
                    },
                    {
                        "name": "RHBZ#2487093",
                        "tags": [
                            "issue-tracking",
                            "x_refsource_REDHAT"
                        ],
                        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487093"
                    },
                    {
                        "tags": [
                            "x_sadp-csaf-vex"
                        ],
                        "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42573.json"
                    }
                ],
                "timeline": [
                    {
                        "lang": "en",
                        "time": "2026-06-09T18:01:50.543Z",
                        "value": "Reported to Red Hat."
                    },
                    {
                        "lang": "en",
                        "time": "2026-06-09T16:21:29.313Z",
                        "value": "Made public."
                    }
                ],
                "title": "svelte: Svelte: Cross-Site Scripting via DOM Clobbering",
                "x_adpType": "supplier",
                "x_generator": {
                    "engine": "sadp-cli 1.0.0"
                },
                "providerMetadata": {
                    "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
                    "shortName": "redhat-SADP",
                    "dateUpdated": "2026-07-15T00:57:09.078Z"
                }
            }
        ]
    }
}