GHSA-6m7c-xfhp-p9fh: Typebot has Stored XSS via Rating Block Custom Icon that Bypasses isUnsafe Sandbox in Builder Preview
highvulnerability
security
Summary
Typebot has a stored XSS (cross-site scripting, where attackers inject malicious code into a web page) vulnerability in its rating block's custom icon feature. The vulnerability allows attackers to execute arbitrary HTML and JavaScript in the builder's preview by crafting a malicious typebot, potentially leading to session hijacking and unauthorized access to the builder application. This bypasses the sandbox protection that normally prevents untrusted code from running in the builder.
Vulnerability Details
EPSS (30-day exploit probability)
EPSS: 0.0%
Patch Available
Yes
Disclosure Date
May 26, 2026
Classification
Attack SophisticationTrivial
Affected Vendors
Affected Packages
@typebot.io/js@< 0.10.1 (fixed: 0.10.1)
Monthly digest — independent AI security research
Original source: https://github.com/advisories/GHSA-6m7c-xfhp-p9fh
First tracked: May 26, 2026 at 02:00 PM
Classified by LLM (prompt v3) · confidence: 95%