How severe is CVE-2023-53737?

CVE-2023-53737 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-2023-53737 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-53737?

CVE-2023-53737 affects Kentico Xperience. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-53737?

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

Does CVE-2023-53737 have an EU (EUVD) identifier?

Yes. CVE-2023-53737 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204337.

When was CVE-2023-53737 published?

CVE-2023-53737 was published on 2025-12-18 and last updated on 2026-06-17.

CVE-2023-53737

CVE-2023-53737 is a medium-severity vulnerability in Kentico Xperience 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 v4: 5.1
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204337
Weakness: CWE-79
Affected product: Kentico Xperience
Published: 2025-12-18
Last modified: 2026-06-17

Description

A stored cross-site scripting vulnerability in Kentico Xperience allows global administrators to inject malicious payloads via the Localization application. Attackers can execute scripts that could affect multiple parts of the administration interface.

Frequently asked questions

What is CVE-2023-53737?: A stored cross-site scripting vulnerability in Kentico Xperience allows global administrators to inject malicious payloads via the Localization application. Attackers can execute scripts that could affect multiple parts of the administration interface.
How severe is CVE-2023-53737?: CVE-2023-53737 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-2023-53737 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-53737?: CVE-2023-53737 affects Kentico Xperience. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-53737?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-53737 have an EU (EUVD) identifier?: Yes. CVE-2023-53737 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204337.
When was CVE-2023-53737 published?: CVE-2023-53737 was published on 2025-12-18 and last updated on 2026-06-17.

References

Affected products (1)

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

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