How severe is CVE-2019-4388?

CVE-2019-4388 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-4388 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-4388?

CVE-2019-4388 affects Hcltech Appscan Source. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-4388?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-4388 published?

CVE-2019-4388 was published on 2019-12-18 and last updated on 2026-06-17.

CVE-2019-4388

CVE-2019-4388 is a medium-severity vulnerability in Hcltech Appscan Source with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Hcltech Appscan Source
Published: 2019-12-18
Last modified: 2026-06-17

Description

HCL AppScan Source 9.0.3.13 and earlier is susceptible to cross-site scripting (XSS) attacks by allowing users to embed arbitrary JavaScript code in the Web UI.

Frequently asked questions

What is CVE-2019-4388?: HCL AppScan Source 9.0.3.13 and earlier is susceptible to cross-site scripting (XSS) attacks by allowing users to embed arbitrary JavaScript code in the Web UI.
How severe is CVE-2019-4388?: CVE-2019-4388 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-4388 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-4388?: CVE-2019-4388 affects Hcltech Appscan Source. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-4388?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-4388 published?: CVE-2019-4388 was published on 2019-12-18 and last updated on 2026-06-17.

References

https://hclpnpsupport.hcltech.com/csm?id=kb_article&sysparm_article=KB0074364

Affected products (1)

cpe:2.3:a:hcltech:appscan_source:*:*:*:*:*:*:*:*

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