Vulnerability Details : CVE-2021-42335
Easytest bulletin board management function of online learning platform does not filter special characters. After obtaining a user’s privilege, remote attackers can inject JavaScript and execute stored XSS attack.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-42335
- cpe:2.3:a:huaju:easytest_online_learning_test_platform:1705:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-42335
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42335
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
TWCERT/CC |
CWE ids for CVE-2021-42335
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: twcert@cert.org.tw (Primary)
References for CVE-2021-42335
-
https://www.twcert.org.tw/tw/cp-132-5206-3cd3f-1.html
TWCERT/CC台灣電腦網路危機處理暨協調中心-驊鉅數位科技 Easytest線上學習測驗平台 - Improper AuthorizationThird Party Advisory
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