CVE-2021-44164

Published: Dec 20, 2021Modified: Jun 17, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: twcert@cert.org.tw (Secondary)

Description

Chain Sea ai chatbot system’s file upload function has insufficient filtering for special characters in URLs, which allows a remote attacker to by-pass file type validation, upload malicious script and execute arbitrary code without authentication, in order to take control of the system or terminate service.

Affected (1)

Products: Chinasea: Qb Smart Service Robot

1 product

Qb Smart Service Robot

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Chinasea Qb Smart Service Robot	All versions

Related CWEs

Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

References (2)

https://www.twcert.org.tw/tw/cp-132-5400-c31d1-1.html

Source: twcert@cert.org.tw

Third Party Advisory

https://www.twcert.org.tw/tw/cp-132-5400-c31d1-1.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.