{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-11T21:03:40.295","vulnerabilities":[{"cve":{"id":"CVE-2025-66469","sourceIdentifier":"security-advisories@github.com","published":"2025-12-09T00:15:49.330","lastModified":"2025-12-11T16:00:55.153","vulnStatus":"Analyzed","cveTags":[],"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."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.7}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-79"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:zauberzeug:nicegui:*:*:*:*:*:*:*:*","versionEndExcluding":"3.4.0","matchCriteriaId":"AD5CC19F-9BBA-4C0D-879C-627478C1E72B"}]}]}],"references":[{"url":"https://github.com/zauberzeug/nicegui/commit/a8fd25b7d5e23afb1952d0f60a1940e18b5f1ca8","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/zauberzeug/nicegui/security/advisories/GHSA-72qc-wxch-74mg","source":"security-advisories@github.com","tags":["Exploit","Vendor Advisory"]},{"url":"https://github.com/zauberzeug/nicegui/security/advisories/GHSA-72qc-wxch-74mg","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Vendor Advisory"]}]}}]}