CVE-2021-44163

6.1 mediumEPSS 0.8%

Medium (6.1) in chinasea qb smart service robot. EPSS 0.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

6.1 medium

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-12-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

chinasea:qb_smart_service_robot

References

https://www.twcert.org.tw/tw/cp-132-5399-03b81-1.html
https://www.twcert.org.tw/tw/cp-132-5399-03b81-1.html

Check your stack JSON