CVE-2023-53736: A reflected cross-site scripting vulnerability in Kentico Xperience allows authenticated users to inject malic

Q: How do I fix CVE-2023-53736?

xperience: upgrade to newer than 13.0.120. Exact commands for each OS are on this page.

Q: Is CVE-2023-53736 being exploited?

CVE-2023-53736 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-2023-53736 affect?

CVE-2023-53736 affects xperience. Severity is medium (CVSS 5.4). A reflected cross-site scripting vulnerability in Kentico Xperience allows authenticated users to inject malicious scripts in the administration interface. Attackers can exploit this vulnerability to execute arbitrary scripts within the adm

Q: How urgent is CVE-2023-53736?

Priority 21/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2023-53736 is a medium-severity flaw (CVSS 5.4) affecting xperience. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A reflected cross-site scripting vulnerability in Kentico Xperience allows authenticated users to inject malicious scripts in the administration interface. Attackers can exploit this vulnerability to execute arbitrary scripts within the administrative context.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 90%)
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: <= 13.0.120

Fixed in: newer than 13.0.120

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 13.0.120 (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-2023-53736?

xperience: upgrade to newer than 13.0.120. Exact commands for each OS are on this page.

Is CVE-2023-53736 being exploited?

CVE-2023-53736 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-2023-53736 affect?

CVE-2023-53736 affects xperience. Severity is medium (CVSS 5.4). A reflected cross-site scripting vulnerability in Kentico Xperience allows authenticated users to inject malicious scripts in the administration interface. Attackers can exploit this vulnerability to execute arbitrary scripts within the adm

How urgent is CVE-2023-53736?

Priority 21/100. No elevated risk signals yet.

Related CVEs

CVE-2025-5591 MEDIUM 5.4 UPGRADE Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component, allowing an a
CVE-2020-36890 HIGH 7.2 UPGRADE An access control bypass vulnerability in Kentico Xperience allows administrators to modify global administrat
CVE-2025-32370 HIGH 7.2 UPGRADE Kentico Xperience before 13.0.178 has a specific set of allowed ContentUploader file extensions for unauthenti
CVE-2025-32369 MEDIUM 6.4 UPGRADE Kentico Xperience before 13.0.181 allows authenticated users to distribute malicious content (for stored XSS)
CVE-2025-2794 HIGH 8.7 UPGRADE An unsafe reflection vulnerability in Kentico Xperience allows an unauthenticated attacker to kill the current

References

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