What is CVE-2021-43991?

CVE-2021-43991 is a medium-severity vulnerability in Kentico Xperience Xms, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2021-12-03.

How severe is CVE-2021-43991?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in Kentico Xperience Xms

CVE-2021-43991

The Kentico Xperience CMS version 13.0 – 13.0.43 is vulnerable to a persistent Cross-Site Scripting (XSS) vulnerability (also known as Stored or Second-Order XSS). Persistent XSS vulnerabilities occur when the application stores and retrie…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (42.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N.

Affected products

Kentico Xperience Xms — versions 13.0
Kentico Xperience

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

info@appcheck-ng.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-43991?: CVE-2021-43991 is a medium-severity vulnerability in Kentico Xperience Xms, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2021-12-03.
How severe is CVE-2021-43991?: Medium severity. CVSS v3 base score is 6.8 out of 10.