XSS in Enghouse Web Chat

CVE-2020-13972

Enghouse Web Chat 6.2.284.34 allows XSS. When one enters their own domain name in the WebServiceLocation parameter, the response from the POST request is displayed, and any JavaScript returned from the external server is executed in the browser. This is related to CVE-2019-16951.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (48.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/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-2020-13972?
CVE-2020-13972 is a medium-severity vulnerability in Enghouse Web Chat, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-09-03.
How severe is CVE-2020-13972?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2020-13972 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.