What’s Vulnerable › Vulnerabilities

CVE-2021-42329: ShinHer Information Co., LTD. ShinHer StudyOnline System - Stored XSS

• Severity: low (CVSS 3.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% 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-79

Description

The “List_Add” function of message board of ShinHer StudyOnline System does not filter special characters in the title parameter. After logging in with user’s privilege, remote attackers can inject JavaScript and execute stored XSS attacks.

Affected products

• ShinHer Information Co., LTD. ShinHer StudyOnline System: v2021

References

• https://www.twcert.org.tw/tw/cp-132-5199-61238-1.html
• https://www.twcert.org.tw/tw/cp-132-5199-61238-1.html

Get alerted when CVE-2021-42329 or the next vulnerability affects your stack