What’s Vulnerable › Vulnerabilities

CVE-2021-42336: Huachu Digital Technology Co.,Ltd. Easytest - Improper Authorization

• Severity: medium (CVSS 4.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-15 · updated 2026-06-17
• Weakness: CWE-285

Description

The learning history page of the Easytest is vulnerable by permission bypass. After obtaining a user’s permission, remote attackers can access other users’ and administrator’s account information except password by crafting URL parameters.

Affected products

• Huachu Digital Technology Co.,Ltd. Easytest: 1705

References

• https://www.twcert.org.tw/tw/cp-132-5205-1de5a-1.html
• https://www.twcert.org.tw/tw/cp-132-5205-1de5a-1.html

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