Vulnerability · Published Apr 13, 2022 · Assigned by mitre

CVE-2021-42136

Critical 9.0

In plain English

A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.7% (higher than 92% of all known vulnerabilities).

Severity (CVSS NVD)9.0Critical

Exploit odds (30 days)4.7%top 8.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://www.project-redcap.org/ x_refsource_MISC
https://redcap.med.usc.edu/_shib/assets/ChangeLog_Standard.pdf x_refsource_MISC
http://packetstormsecurity.com/files/166723/REDCap-Cross-Site-Scripting.html x_refsource_MISC