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CVE-2026-43900 - Vulnerability Analysis

CriticalCVSS: 9.3

Last Updated: May 12, 2026

DeepChat - Stored XSS

Published: May 11, 2026Updated: May 12, 2026Remote Exploitable

Overview

DeepChat prior to v1.0.4-beta.1 contains a stored XSS caused by improper SVG sanitization and HTML entity decoding in SvgArtifact.vue, letting attackers execute arbitrary JavaScript when victims interact with crafted SVGs.

Severity & Score

Severity: Critical

CVSS Score: 9.3

Impact

Attackers can execute arbitrary JavaScript in victims' browsers, leading to session hijacking, data theft, or other malicious actions.

Mitigation

Update to version v1.0.4-beta.1 or later.

References

https://github.com/ThinkInAIXYZ/deepchat/security/advisories/GHSA-7r59-67v3-3mgp

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-43900
Severity: Critical
CVSS Score: 9.3
Type: stored_xss
Status: rejected

CWE

CWE-79

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N