Medium severity6.1NVD Advisory· Published Dec 9, 2025· Updated Jun 17, 2026
CVE-2025-66470
CVE-2025-66470
Description
NiceGUI is a Python-based UI framework. Versions 3.3.1 and below are subject to a XSS vulnerability through the ui.interactive_image component of NiceGUI. The component renders SVG content using Vue's v-html directive without any sanitization. This allows attackers to inject malicious HTML or JavaScript via the SVG tag whenever the image component is rendered or updated. This is particularly dangerous for dashboards or multi-user applications displaying user-generated content or annotations. This issue is fixed in version 3.4.0.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
niceguiPyPI | < 3.4.0 | 3.4.0 |
Affected products
3< 3.4.0+ 1 more
- (no CPE)range: < 3.4.0
- cpe:2.3:a:zauberzeug:nicegui:*:*:*:*:*:*:*:*range: <3.4.0
Patches
Vulnerability mechanics
References
4- github.com/zauberzeug/nicegui/commit/58ad0b36e19922de16bbc79ea3ddd29851b1a3e3nvdPatchWEB
- github.com/zauberzeug/nicegui/security/advisories/GHSA-2m4f-cg75-76w2nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-2m4f-cg75-76w2ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-66470ghsaADVISORY
News mentions
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