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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-44164
• https://www.twcert.org.tw/tw/cp-132-5400-c31d1-1.html