CVE-2021-42329

Name: CVE-2021-42329
Creator: NVD / NIST
Published: 2021-10-15T12:15:07.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.57%

Last modified Jun 17, 2026

CVE-2021-42329 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.57%

42.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Xinheinformation	Xinhe Teaching Platform System	v2021

References

https://www.twcert.org.tw/tw/cp-132-5199-61238-1.htmlThird Party Advisory
https://www.twcert.org.tw/tw/cp-132-5199-61238-1.htmlThird Party Advisory

Timeline

Published: Oct 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42329?

How severe is CVE-2021-42329?

CVE-2021-42329 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42329?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-42329?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST