{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-66469", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-12-02T15:43:16.586Z", "datePublished": "2025-12-08T23:54:37.955Z", "dateUpdated": "2025-12-09T16:03:54.125Z"}, "containers": {"cna": {"title": "NiceGUI Reflected XSS in ui.add_css, ui.add_scss, and ui.add_sass via Style Injection", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/zauberzeug/nicegui/security/advisories/GHSA-72qc-wxch-74mg", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/zauberzeug/nicegui/security/advisories/GHSA-72qc-wxch-74mg"}, {"name": "https://github.com/zauberzeug/nicegui/commit/a8fd25b7d5e23afb1952d0f60a1940e18b5f1ca8", "tags": ["x_refsource_MISC"], "url": "https://github.com/zauberzeug/nicegui/commit/a8fd25b7d5e23afb1952d0f60a1940e18b5f1ca8"}], "affected": [{"vendor": "zauberzeug", "product": "nicegui", "versions": [{"version": "< 3.4.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-12-08T23:54:37.955Z"}, "descriptions": [{"lang": "en", "value": "NiceGUI is a Python-based UI framework. Versions 3.3.1 and below are vulnerable to Reflected XSS through its ui.add_css, ui.add_scss, and ui.add_sass functions. The functions lack proper sanitization or encoding for the JavaScript context they generate. An attacker can break out of the intended <style> or <script> tags by injecting closing tags (e.g., </style> or </script>), allowing for the execution of arbitrary JavaScript. This issue is fixed in version 3.4.0."}], "source": {"advisory": "GHSA-72qc-wxch-74mg", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/zauberzeug/nicegui/security/advisories/GHSA-72qc-wxch-74mg", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-12-09T14:18:04.262651Z", "id": "CVE-2025-66469", "options": [{"Exploitation": "poc"}, {"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": "2025-12-09T16:03:54.125Z"}}]}}

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{}