cvedb.io
CVE-2026-43900
CRITICAL · CVSS 9.3
EPSS exploitation probability: 0%
Published 2026-05-11T23:20:21.557 · Last modified 2026-06-17T10:50:03.207

Summary

DeepChat is an open-source artificial intelligence agent platform that unifies models, tools, and agents. Prior to v1.0.4-beta.1, a Cross-Site Scripting (XSS) vulnerability exists due to a discrepancy between the backend validation layer and the frontend browser rendering engine. The SVGSanitizer (src/main/lib/svgSanitizer.ts) restricts script execution by scrubbing javascript: protocols using plain-text regular expressions. However, it fails to account for HTML entity decoding prior to Vue's v-html DOM insertion inside the SvgArtifact.vue component. By feeding an SVG artifact with obfuscated entities (e.g., javascript:alert(1)), an attacker can completely bypass the sanitizer, culminating in arbitrary JavaScript execution when a victim interacts with the rendered SVG Element. This vu

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.