CVE-2019-4391

Name: CVE-2019-4391
Creator: NVD / NIST
Published: 2020-04-07T16:15:17.9+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2019-4391 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. HCL AppScan Standard is vulnerable to XML External Entity Injection (XXE) attack when processing XML data. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

HCL AppScan Standard is vulnerable to XML External Entity Injection (XXE) attack when processing XML data

Metrics

CVSS 3.1

8.2/10

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

EPSS Probability

1.23%

65.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-611

Affected Software

Vendor	Product	Versions
Hcltech	Appscan	<= 9.0.3.14

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0077917Vendor Advisory
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0077917Vendor Advisory

Timeline

Published: Apr 7, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-4391?

HCL AppScan Standard is vulnerable to XML External Entity Injection (XXE) attack when processing XML data

How severe is CVE-2019-4391?

CVE-2019-4391 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2019-4391?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-4391?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST