What’s Vulnerable › Vulnerabilities

CVE-2021-32542: SysJust CTS Web - Reflected XSS

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-28 · updated 2026-06-17
• Weakness: CWE-79

Description

The parameters of the specific functions in the CTS Web trading system do not filter special characters, which allows unauthenticated attackers can remotely perform reflected XSS and obtain the users’ connection token that triggered the attack.

Affected products

• SysJust CTS Web: before 2021.3.24 — fixed in 2021.3.24

How to fix

Upgrade to a fixed version: SysJust CTS Web 2021.3.24. Check the vendor advisory for mitigations.

References

• https://www.chtsecurity.com/news/40e165e2-e539-49bc-bcf1-e3b27c29e344
• https://www.twcert.org.tw/tw/cp-132-4758-82b05-1.html
• https://www.chtsecurity.com/news/40e165e2-e539-49bc-bcf1-e3b27c29e344
• https://www.twcert.org.tw/tw/cp-132-4758-82b05-1.html

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