CVE-2023-23548: Reflected XSS in business intelligence in Checkmk <2.2.0p8, <2.1.0p32, <2.0.0p38, <=1.6.0p30.

Q: How do I fix CVE-2023-23548?

checkmk: upgrade to newer than 1.6.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-23548 being exploited?

CVE-2023-23548 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-2023-23548 affect?

CVE-2023-23548 affects checkmk. Severity is medium (CVSS 5.4). Reflected XSS in business intelligence in Checkmk <2.2.0p8, <2.1.0p32, <2.0.0p38, <=1.6.0p30.

Q: How urgent is CVE-2023-23548?

Priority 27/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2023-23548 is a medium-severity flaw (CVSS 5.4) affecting checkmk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Reflected XSS in business intelligence in Checkmk <2.2.0p8, <2.1.0p32, <2.0.0p38, <=1.6.0p30.

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	None
User interaction	Required
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-80, CWE-79
Published	2023-08-01
Last modified	2026-10-23

Publisher (CNA): Checkmk GmbH · Vendor: checkmk

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-08-01 10:15 UTCPublished CVE record published
2026-10-23 23:10 UTCUpdated Record last modified

checkmk checkmk UPGRADE

Affected: <= 1.6.0 · 2.0.0 · 2.0.0 b1 · 2.0.0 b2 · 2.0.0 b3 · 2.0.0 b4 · 2.0.0 b5 · 2.0.0 b6

Fixed in: newer than 1.6.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.6.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade checkmk

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-2023-23548?

checkmk: upgrade to newer than 1.6.0. Exact commands for each OS are on this page.

Is CVE-2023-23548 being exploited?

CVE-2023-23548 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-2023-23548 affect?

CVE-2023-23548 affects checkmk. Severity is medium (CVSS 5.4). Reflected XSS in business intelligence in Checkmk <2.2.0p8, <2.1.0p32, <2.0.0p38, <=1.6.0p30.

How urgent is CVE-2023-23548?

Priority 27/100. No elevated risk signals yet.

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References

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