What is the CVSS score of CVE-2020-13972?

CVE-2020-13972 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.7%.

Is there a public PoC exploit available for CVE-2020-13972?

Yes, a public proof-of-concept exploit is available for CVE-2020-13972. Prioritise patching immediately. EPSS: 0.7%.

Web Chat CVE-2020-13972

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2020-09-03 cve@mitre.org

XSS Web Chat

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Sep 03, 2020 - 15:15 nvd

MEDIUM 6.1

DescriptionNVD

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.

AnalysisAI

Enghouse Web Chat 6.2.284.34 allows XSS. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Enghouse Web Chat.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.