CVSS 3.1
9.0 criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:HCVE-2021-42136
Critical (9.0) in vanderbilt redcap. EPSS 4.7% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 4.7% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vanderbilt:redcap
References
- http://packetstormsecurity.com/files/166723/REDCap-Cross-Site-Scripting.html
- https://redcap.med.usc.edu/_shib/assets/ChangeLog_Standard.pdf
- https://www.project-redcap.org/
- http://packetstormsecurity.com/files/166723/REDCap-Cross-Site-Scripting.html
- https://redcap.med.usc.edu/_shib/assets/ChangeLog_Standard.pdf