CVE-2021-42136
CVSS v3
9
CRITICAL
EPSS Score
1.8 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A stored Cross-Site Scripting (XSS) vulnerability in the Missing Data Codes functionality of REDCap before 11.4.0 allows remote attackers to execute JavaScript code in the client's browser by storing said code as a Missing Data Code value. This can then be leveraged to execute a Cross-Site Request Forgery attack to escalate privileges to administrator.
Technical details
- Published
- 2022-04-13
- Exploit-DB
- EDB-50877
Frequently asked questions
What is CVE-2021-42136?
A stored Cross-Site Scripting (XSS) vulnerability in the Missing Data Codes functionality of REDCap before 11.4.0 allows remote attackers to execute JavaScript code in the client's browser by storing said code as a Missing Data Code value. This can then be leveraged to execute a Cross-Site Request Forgery attack to escalate privileges to administrator.
Is CVE-2021-42136 actively exploited?
Active exploitation of CVE-2021-42136 has not been confirmed. The EPSS score is 1.8%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-42136?
CVE-2021-42136 has a CVSS v3 base score of 9 (CRITICAL severity).
Is CVE-2021-42136 affecting your environment?
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