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

Quick assessment

Affected
ShinHer Information Co., LTD. ShinHer StudyOnline System
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ShinHer StudyOnline System是中国欣河（ShinHer）公司的一种校务系统。 ShinHer StudyOnline System 存在跨站脚本漏洞，该漏洞源于ShinHer StudyOnline系统留言板的List Add功能不过滤标题参数中的特殊字符。攻击者可利用该漏洞使用用户权限登录后，可以注入JavaScript并执行存储的XSS攻击。

CVSS 5.4 · Medium EPSS 0.59% · P46
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I. Basic Information for CVE-2021-42329

Vulnerability Information
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Vulnerability Title
ShinHer Information Co., LTD. ShinHer StudyOnline System - Stored XSS
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
ShinHer StudyOnline System 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ShinHer StudyOnline System是中国欣河（ShinHer）公司的一种校务系统。 ShinHer StudyOnline System 存在跨站脚本漏洞，该漏洞源于ShinHer StudyOnline系统留言板的List Add功能不过滤标题参数中的特殊字符。攻击者可利用该漏洞使用用户权限登录后，可以注入JavaScript并执行存储的XSS攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ShinHer Information Co., LTD. ShinHer StudyOnline System unspecified ~ 2021 -

II. Public POCs for CVE-2021-42329

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III. Intelligence Information for CVE-2021-42329

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Other References for CVE-2021-42329 (1)

Same Patch Batch · ShinHer Information Co., LTD. · 2021-10-15 · 4 CVEs total

CVE-2021-42330 8.8 HIGH ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-1
CVE-2021-42331 5.4 MEDIUM ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-2
CVE-2021-42332 4.3 MEDIUM ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-3

IV. Related Vulnerabilities

Same product: ShinHer StudyOnline System
Same vendor: ShinHer Information Co., LTD.
Same weakness: CWE-79

V. Comments for CVE-2021-42329

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