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TI-2021-18765 Aliases CVE-2021-42335GHSA-89rc-4jgm-q84x

Huachu Digital Technology Co.,Ltd. Easytest - Stored XSS

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Easytest bulletin board management function of online learning platform does not filter special characters. After obtaining a user’s privilege, remote attackers can inject JavaScript and execute stored XSS attack.

Why it matters now

EPSS 0.00586 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Huachu Digital Technology Co.,Ltd.Easytest1705—No fix listedCNA
  • Easytest VendorHuachu Digital Technology Co.,Ltd. Affected 1705 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:huaju:easytest_online_learning_test_platform:1705:*:*:*:*:*:*:*1705VulnerableHuaju
  • cpe:2.3:a:huaju:easytest_online_learning_test_platform:1705:*:*:*:*:*:*:* Versions 1705 Vulnerable ·Huaju

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42335
  2. 2026-10-03 Alias added: GHSA-89rc-4jgm-q84x

References

Advisory 1

  • TI-2021-18764 Huachu Digital Technology Co.,Ltd. Easytest - SQL Injection-2 CVSS 3.1HIGH 8.8
  • TI-2021-18763 Huachu Digital Technology Co.,Ltd. Easytest - SQL Injection-1 CVSS 3.1HIGH 8.8
  • TI-2021-18766 Huachu Digital Technology Co.,Ltd. Easytest - Improper Authorization CVSS 3.1MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences