Paper/Archive/CVE-2021-42136

CVE-2021-42136

mitre — A stored Cross-Site Scripting (XSS) vulnerability in the Missing Data Codes functionality of REDCap before 11.4.0 allows remote attackers…

EPSS 5%CVSS 9.0

critical.is priorityof 100

CVSS 9.0 (NVD)9.0 / 10 × 3027.0 Not in CISA KEV+300.0 EPSS percentile 91.7.917 × 2018.3 No public exploit+100.0 SSVC exploitation: unknown+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

n/an/a–CNA

Scores by source

NVD9.0CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

References

refpacketstormsecurity.com/files/166723/REDCap-Cross-Site-Scripting.html refproject-redcap.org refredcap.med.usc.edu/_shib/assets/ChangeLog_Standard.pdf