XSS in Evms Redcap

CVE-2020-27359

A cross-site scripting (XSS) issue in REDCap 8.11.6 through 9.x before 10 allows attackers to inject arbitrary JavaScript or HTML in the Messenger feature. It was found that the filename of the image or file attached in a message could be used to perform this XSS attack. A user could craft a message and send it to anyone on the platform including admins. The XSS payload would execute on the other account without interaction from the user on several pages.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (53.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-27359?
CVE-2020-27359 is a medium-severity vulnerability in Evms Redcap, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-11-02.
How severe is CVE-2020-27359?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2020-27359 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.