How severe is CVE-2019-13493?

CVE-2019-13493 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-2019-13493 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-13493?

CVE-2019-13493 affects Sitecore Experience Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-13493?

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

When was CVE-2019-13493 published?

CVE-2019-13493 was published on 2019-07-17 and last updated on 2026-06-17.

CVE-2019-13493

CVE-2019-13493 is a medium-severity vulnerability in Sitecore Experience Platform 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Sitecore Experience Platform
Published: 2019-07-17
Last modified: 2026-06-17

Description

In Sitecore 9.0 rev 171002, Persistent XSS exists in the Media Library and File Manager. An authenticated unprivileged user can modify the uploaded file extension parameter to inject arbitrary JavaScript.

Frequently asked questions

What is CVE-2019-13493?: In Sitecore 9.0 rev 171002, Persistent XSS exists in the Media Library and File Manager. An authenticated unprivileged user can modify the uploaded file extension parameter to inject arbitrary JavaScript.
How severe is CVE-2019-13493?: CVE-2019-13493 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-2019-13493 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-13493?: CVE-2019-13493 affects Sitecore Experience Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-13493?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-13493 published?: CVE-2019-13493 was published on 2019-07-17 and last updated on 2026-06-17.

References

http://packetstormsecurity.com/files/153613/Sitecore-9.0-Rev-171002-Cross-Site-Scripting.html

Affected products (1)

cpe:2.3:a:sitecore:experience_platform:9.0:*:*:*:*:*:*:*

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