How severe is CVE-2019-19493?

CVE-2019-19493 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-19493 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19493?

CVE-2019-19493 affects Kentico Xperience. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19493?

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

When was CVE-2019-19493 published?

CVE-2019-19493 was published on 2019-12-02 and last updated on 2026-06-17.

CVE-2019-19493

CVE-2019-19493 is a medium-severity vulnerability in Kentico Xperience with a CVSS 3.x base score of 5.4. 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-434.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Kentico Xperience
Published: 2019-12-02
Last modified: 2026-06-17

Description

Kentico before 12.0.50 allows file uploads in which the Content-Type header is inconsistent with the file extension, leading to XSS.

Frequently asked questions

What is CVE-2019-19493?: Kentico before 12.0.50 allows file uploads in which the Content-Type header is inconsistent with the file extension, leading to XSS.
How severe is CVE-2019-19493?: CVE-2019-19493 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-19493 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19493?: CVE-2019-19493 affects Kentico Xperience. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19493?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-19493 published?: CVE-2019-19493 was published on 2019-12-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kentico:xperience:*:*:*:*:*:*:*:*

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