CVE-2021-44163

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CVSS 3.1

6.1 medium

EPSS

<1%p53

Published

Dec 20, 2021 (Dec 20, 2021)

Modified

Jun 17, 2026

Description

Chain Sea ai chatbot backend has improper filtering of special characters in URL parameters, which allows a remote attacker to perform JavaScript injection for XSS (reflected Cross-site scripting) attack without authentication.

Vendors: chinasea
Products: qb smart service robot
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.8%)

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