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5.6 KiB
JSON
1 line
5.6 KiB
JSON
{"schema_version":"1.9.0","id":"GHSA-8c95-hpq2-w46f","published":"2025-10-03T19:19:17Z","modified":"2026-07-07T17:57:19.036163158Z","aliases":["CVE-2025-53354","PYSEC-2026-1699"],"summary":"NiceGUI has a Reflected XSS","details":"### Summary\n\nA Cross-Site Scripting (XSS) risk exists in NiceGUI when developers render unescaped user input into the DOM using `ui.html()`. Before version 3.0, NiceGUI does not enforce HTML or JavaScript sanitization, so applications that directly combine components like `ui.input()` with `ui.html()` without escaping may allow attackers to execute arbitrary JavaScript in the user’s browser. Same holds for `ui.chat_message` with HTML content.\n\nApplications that directly reflect user input via `ui.html()` (or `ui.chat_message` in HTML mode) are affected. This may lead to client-side code execution (e.g., session hijacking or phishing). Applications that do not pass untrusted input into ui.html() are not affected.\n\n### Details\n\nNiceGUI allows developers to bind user input directly into the DOM using `ui.html()` or `ui.chat_message()`. However, the library does not enforce any HTML or JavaScript sanitization, which potentially creates a dangerous attack surface for developers unaware of this behavior.\n\nThe vulnerable code path appears when combining these:\n\n```python\nui.input(\"XSS Input:\", on_change=inject)\ndef inject(e):\n ui.html(f'{e.value}')\n```\n\nIn this setup, any input provided by the user is rendered **verbatim** into the page’s DOM via innerHTML, enabling injection of script-based payloads.\n\n### PoC (Proof of Concept)\n\n1. Create a simple app:\n\n ```python\n from nicegui import ui\n\n @ui.page('/')\n def main():\n def inject(e):\n ui.html(f'{e.value}') # vulnerable use\n\n ui.input(\"XSS Input:\", on_change=inject)\n\n ui.run()\n ```\n\n2. Run the app:\n\n ```bash\n python app.py\n ```\n\n3. In the browser, input the following payload:\n\n ```html\n <img src=x onerror=alert('XSS')>\n ```\n\n4. Observe the JavaScript alert popup:\n\n ```\n XSS\n ```\n\n### Impact\n\n* **Vulnerability type:** Reflected Cross-Site Scripting (XSS)\n* **Attack vector:** User input rendered as raw HTML\n* **Affected users:** Any NiceGUI-based application using `ui.html()` or `ui.chat_message()` with HTML content from user input","affected":[{"package":{"name":"nicegui","ecosystem":"PyPI","purl":"pkg:pypi/nicegui"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.0"}]}],"versions":["0.1.0","0.1.4","0.1.6","0.2.0","0.2.1","0.2.10","0.2.11","0.2.12","0.2.13","0.2.14","0.2.15","0.2.2","0.2.3","0.2.4","0.2.9","0.3.0","0.3.1","0.3.2","0.3.3","0.3.4","0.3.5","0.3.6","0.3.7","0.3.8","0.3.9","0.4.0","0.4.1","0.4.10","0.4.11","0.4.12","0.4.13","0.4.14","0.4.15","0.4.2","0.4.3","0.4.4","0.4.5","0.4.6","0.4.7","0.4.8","0.4.9","0.5.0","0.5.1","0.5.10","0.5.11","0.5.12","0.5.2","0.5.3","0.5.4","0.5.5","0.5.6","0.5.7","0.5.8","0.5.9","0.6.0","0.6.1","0.6.10","0.6.11","0.6.12","0.6.13","0.6.2","0.6.3","0.6.4","0.6.5","0.6.6","0.6.7","0.6.8","0.6.9","0.7.0","0.7.1","0.7.10","0.7.11","0.7.12","0.7.13","0.7.14","0.7.15","0.7.16","0.7.17","0.7.18","0.7.19","0.7.2","0.7.21","0.7.22","0.7.23","0.7.24","0.7.25","0.7.26","0.7.27","0.7.28","0.7.29","0.7.3","0.7.30","0.7.4","0.7.6","0.7.7","0.7.8","0.7.9","0.8.0","0.8.1","0.8.10","0.8.11","0.8.12","0.8.13","0.8.14","0.8.15","0.8.16","0.8.2","0.8.3","0.8.4","0.8.5","0.8.6","0.8.7","0.8.8","0.8.9","0.9.0","0.9.1","0.9.10","0.9.11","0.9.12","0.9.13","0.9.14","0.9.15","0.9.16","0.9.17","0.9.18","0.9.19","0.9.2","0.9.20","0.9.21","0.9.22","0.9.23","0.9.24","0.9.25","0.9.26","0.9.27","0.9.28","0.9.3","0.9.4","0.9.5","0.9.6","0.9.7","0.9.8","0.9.9","1.0.1","1.0.10","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.0.8","1.0.9","1.1.0","1.1.1","1.1.10","1.1.11","1.1.2","1.1.3","1.1.4","1.1.5","1.1.6","1.1.7","1.1.8","1.1.9","1.2.0","1.2.1","1.2.10","1.2.11","1.2.12","1.2.13","1.2.14","1.2.15","1.2.16","1.2.17","1.2.18","1.2.2","1.2.20","1.2.21","1.2.22","1.2.23","1.2.24","1.2.3","1.2.4","1.2.5","1.2.6","1.2.7","1.2.8","1.2.9","1.3.0","1.3.1","1.3.10","1.3.11","1.3.12","1.3.13","1.3.14","1.3.15","1.3.16","1.3.17","1.3.18","1.3.2","1.3.3","1.3.4","1.3.5","1.3.6","1.3.7","1.3.8","1.3.9","1.4.0","1.4.1","1.4.10","1.4.11","1.4.12","1.4.13","1.4.14","1.4.15","1.4.16","1.4.17","1.4.18","1.4.19","1.4.2","1.4.20","1.4.21","1.4.22","1.4.23","1.4.24","1.4.25","1.4.26","1.4.27","1.4.28","1.4.29","1.4.3","1.4.30","1.4.31","1.4.33","1.4.34","1.4.35","1.4.36","1.4.37","1.4.4","1.4.5","1.4.6","1.4.7","1.4.8","1.4.9","2.0.0","2.0.1","2.1.0","2.10.0","2.10.1","2.11.0","2.11.1","2.12.0","2.12.1","2.13.0","2.14.0","2.14.1","2.15.0","2.16.0","2.16.1","2.17.0","2.18.0","2.19.0","2.2.0","2.20.0","2.21.0","2.21.1","2.22.0","2.22.1","2.22.2","2.23.0","2.23.1","2.23.2","2.23.3","2.24.0","2.24.1","2.24.2","2.3.0","2.4.0","2.5.0","2.7.0","2.8.0","2.8.1","2.9.0","2.9.1","3.0.0rc1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-8c95-hpq2-w46f/GHSA-8c95-hpq2-w46f.json"}}],"references":[{"type":"WEB","url":"https://github.com/zauberzeug/nicegui/security/advisories/GHSA-8c95-hpq2-w46f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53354"},{"type":"WEB","url":"https://github.com/zauberzeug/nicegui/commit/4673dc35c94a0c7339e2164378b0977332e60775"},{"type":"PACKAGE","url":"https://github.com/zauberzeug/nicegui"}],"database_specific":{"cwe_ids":["CWE-79"],"github_reviewed":true,"github_reviewed_at":"2025-10-03T19:19:17Z","nvd_published_at":"2025-10-03T20:15:33Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]} |