CVE-2026-43900: ThinkInAIXYZ deepchat, XSS

Описание

Оригинално описание

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 vulnerability is fixed in v1.0.4-beta.1.

Засегнати продукти

• ThinkInAIXYZ deepchat: < 1.0.4-beta.1

Вид слабост

• CWE-79 XSS

История

Други уязвимости в ThinkInAIXYZ deepchat

• 9.6CVE-2026-43899
• 9.7CVE-2025-67744
• 9.7CVE-2025-66481
• 9.7CVE-2025-66222
• 9.7CVE-2025-58768

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-43900
• https://nvd.nist.gov/vuln/detail/CVE-2026-43900
• https://github.com/ThinkInAIXYZ/deepchat/security/advisories/GHSA-7r59-67v3-3mgp