How severe is CVE-2019-3591?

CVE-2019-3591 has a CVSS 3.x base score of 3.9, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-3591 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3591?

CVE-2019-3591 affects Mcafee Data Loss Prevention Endpoint. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-3591?

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

When was CVE-2019-3591 published?

CVE-2019-3591 was published on 2019-07-24 and last updated on 2026-06-17.

CVE-2019-3591

CVE-2019-3591 is a low-severity vulnerability in Mcafee Data Loss Prevention Endpoint with a CVSS 3.x base score of 3.9. 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: Low (CVSS 3.x base score 3.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mcafee Data Loss Prevention Endpoint
Published: 2019-07-24
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in ePO extension in McAfee Data Loss Prevention (DLPe) for Windows 11.x prior to 11.3.0 allows unauthenticated remote user to trigger specially crafted JavaScript to render in the ePO UI via a carefully crafted upload to a remote website which is correctly blocked by DLPe Web Protection. This would then render as an XSS when the DLP Admin viewed the event in the ePO UI.

Frequently asked questions

What is CVE-2019-3591?: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in ePO extension in McAfee Data Loss Prevention (DLPe) for Windows 11.x prior to 11.3.0 allows unauthenticated remote user to trigger specially crafted JavaScript to render in the ePO UI via a carefully crafted upload to a remote website which is correctly blocked by DLPe Web Protection. This would then render as an XSS when the DLP Admin viewed the event in the ePO UI.
How severe is CVE-2019-3591?: CVE-2019-3591 has a CVSS 3.x base score of 3.9, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-3591 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3591?: CVE-2019-3591 affects Mcafee Data Loss Prevention Endpoint. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-3591?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-3591 published?: CVE-2019-3591 was published on 2019-07-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mcafee:data_loss_prevention_endpoint:*:*:*:*:*:*:*:*

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