Vulnerability Details : CVE-2021-42136
Potential exploit
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.
Vulnerability category: Cross site scripting (XSS)Cross-site request forgery (CSRF)
Products affected by CVE-2021-42136
- cpe:2.3:a:vanderbilt:redcap:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-42136
1.76%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42136
| 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 | |
|
9.0
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
2.3
|
6.0
|
NIST |
CWE ids for CVE-2021-42136
-
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: nvd@nist.gov (Primary)
References for CVE-2021-42136
-
http://packetstormsecurity.com/files/166723/REDCap-Cross-Site-Scripting.html
REDCap Cross Site Scripting ≈ Packet StormExploit;Third Party Advisory;VDB Entry
-
https://www.project-redcap.org/
REDCapProduct
-
https://redcap.med.usc.edu/_shib/assets/ChangeLog_Standard.pdf
Release Notes;Third Party Advisory
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