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    "cveMetadata": {
        "cveId": "CVE-2026-109291",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-10-12T14:12:52.833Z",
        "datePublished": "2026-10-12T16:04:52.313Z",
        "dateUpdated": "2026-10-12T16:04:52.313Z"
    },
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                "dateUpdated": "2026-10-12T16:04:52.313Z"
            },
            "datePublic": "2026-09-27T00:00:00.000Z",
            "title": "Open WebUI 0.6.33 before 0.11.4 Stored XSS via Citation embed_url",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Open WebUI from 0.6.33 before 0.11.4 contains a cross-site scripting vulnerability that allows authenticated users to execute script in victims' sessions by storing javascript: URLs in citation embed_url fields. Attackers can share a crafted chat whose citation, when clicked, is passed to window.open, letting them steal localStorage.token and act as the victim."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "cweId": "CWE-79",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "open-webui",
                    "product": "open-webui",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:pypi/open-webui",
                    "versions": [
                        {
                            "version": "0.6.33",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "0.11.4"
                        },
                        {
                            "version": "0.11.4",
                            "status": "unaffected",
                            "versionType": "semver"
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                                    "versionEndExcluding": "0.11.4"
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                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.5,
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                        "privilegesRequired": "LOW",
                        "userInteraction": "REQUIRED",
                        "scope": "UNCHANGED",
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                        "integrityImpact": "HIGH",
                        "availabilityImpact": "NONE",
                        "baseScore": 7.3,
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            "references": [
                {
                    "url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-qpqv-xwg8-cqpj",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "name": "GitHub Security Advisory (GHSA-qpqv-xwg8-cqpj)"
                },
                {
                    "name": "VulnCheck Advisory: Open WebUI 0.6.33 before 0.11.4 Stored XSS via Citation embed_url",
                    "tags": [
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                    "lang": "en",
                    "value": "zyakir13",
                    "type": "reporter"
                },
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                    "lang": "en",
                    "value": "Classic298",
                    "type": "finder"
                }
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}