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Security vulnerability database inclusive of CVEs and GitHub originated security advisories from the world of open source software.

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8 advisories

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NiceGUI Reflected XSS in ui.add_css, ui.add_scss, and ui.add_sass via Style Injection Moderate
CVE-2025-66469 was published for nicegui (pip) Dec 8, 2025
twmoon evnchn
falkoschindler
Credited to twmoon, evnchn, and falkoschindler
NiceGUI Stored/Reflected XSS in ui.interactive_image via unsanitized SVG content Moderate
CVE-2025-66470 was published for nicegui (pip) Dec 8, 2025
twmoon evnchn
falkoschindler
Credited to twmoon, evnchn, and falkoschindler
NiceGUI has a path traversal in app.add_media_files() allows arbitrary file read High
CVE-2025-66645 was published for nicegui (pip) Dec 9, 2025
y4rvin evnchn
falkoschindler
Credited to y4rvin, evnchn, and falkoschindler
NiceGUI is vulnerable to XSS via Unescaped URL in ui.navigate.history.push() / replace() Moderate
CVE-2026-21871 was published for nicegui (pip) Jan 8, 2026
xx-mikusan-xx evnchn
falkoschindler
Credited to xx-mikusan-xx, evnchn, and falkoschindler
NiceGUI apps are vulnerable to XSS which uses `ui.sub_pages` and render arbitrary user-provided links Moderate
CVE-2026-21872 was published for nicegui (pip) Jan 8, 2026
evnchn xx-mikusan-xx
falkoschindler
Credited to evnchn, xx-mikusan-xx, and falkoschindler
NiceGUI apps which use `ui.sub_pages` vulnerable to zero-click XSS High
CVE-2026-21873 was published for nicegui (pip) Jan 8, 2026
evnchn falkoschindler
Credited to evnchn and falkoschindler
NiceGUI's XSS vulnerability in ui.markdown() allows arbitrary JavaScript execution through unsanitized HTML content Moderate
CVE-2026-25516 was published for nicegui (pip) Feb 5, 2026
falkoschindler evnchn
Credited to falkoschindler and evnchn
NiceGUI's Path Traversal via Unsanitized FileUpload.name Enables Arbitrary File Write High
CVE-2026-25732 was published for nicegui (pip) Feb 5, 2026
k14uz falkoschindler
evnchn
Credited to k14uz, falkoschindler, and evnchn
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