CVE-2023-53737: A stored cross-site scripting vulnerability in Kentico Xperience allows global administrators to inject malici

Q: How do I fix CVE-2023-53737?

xperience: upgrade to newer than 13.0.101. Exact commands for each OS are on this page.

Q: Is CVE-2023-53737 being exploited?

CVE-2023-53737 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-53737 affect?

CVE-2023-53737 affects xperience. Severity is medium (CVSS 4.8). 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 administratio

Q: How urgent is CVE-2023-53737?

Priority 18/100. No elevated risk signals yet.

Routine

MEDIUM 4.8UPGRADE

CVE-2023-53737 is a medium-severity flaw (CVSS 4.8) affecting xperience. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-12-18
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: kentico

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-18 20:15 UTCPublished CVE record published
2026-06-17 06:45 UTCUpdated Record last modified

kentico xperience UPGRADE

Affected: <= 13.0.101

Fixed in: newer than 13.0.101

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy xperience || rpm -q xperience || xperience --version

2. UPGRADE to newer than 13.0.101 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade xperience

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xperience

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-53737?

xperience: upgrade to newer than 13.0.101. Exact commands for each OS are on this page.

Is CVE-2023-53737 being exploited?

CVE-2023-53737 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-53737 affect?

CVE-2023-53737 affects xperience. Severity is medium (CVSS 4.8). 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 administratio

How urgent is CVE-2023-53737?

Priority 18/100. No elevated risk signals yet.

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References

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