What is CVE-2021-44164?

CVE-2021-44164 is a critical-severity vulnerability in Chain Sea Information Integration Co., Ltd Ai Chatbot System, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-12-20.

How severe is CVE-2021-44164?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Chain Sea Information Integration Co., Ltd Ai Chatbot System

CVE-2021-44164

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.021 (79.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

twcert@cert.org.tw (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-44164?: CVE-2021-44164 is a critical-severity vulnerability in Chain Sea Information Integration Co., Ltd Ai Chatbot System, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-12-20.
How severe is CVE-2021-44164?: Critical severity. CVSS v3 base score is 9.8 out of 10.