CVE-2023-42954: A privilege escalation issue existed in FileMaker Server, potentially exposing sensitive information to front-

Q: How do I fix CVE-2023-42954?

claris pro: mitigate or apply the listed mitigation; filemaker server: upgrade to 20.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2023-42954 being exploited?

CVE-2023-42954 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-2023-42954 affect?

CVE-2023-42954 affects claris pro, filemaker server. Severity is medium (CVSS 4.9). A privilege escalation issue existed in FileMaker Server, potentially exposing sensitive information to front-end websites when signed in to the Admin Console with an administrator role. This issue has been fixed in FileMaker Server 20.3.1

Q: How urgent is CVE-2023-42954?

Priority 27/100. No elevated risk signals yet.

Routine

MEDIUM 4.9MITIGATEUPGRADE

CVE-2023-42954 is a medium-severity flaw (CVSS 4.9) affecting claris pro, filemaker server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A privilege escalation issue existed in FileMaker Server, potentially exposing sensitive information to front-end websites when signed in to the Admin Console with an administrator role. This issue has been fixed in FileMaker Server 20.3.1 by reducing the information sent in requests.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.4% (top 61%)
CISA exploited list	No
Weakness	CWE-250
Published	2024-03-21
Last modified	2026-06-17

Publisher (CNA): Apple Inc. · Vendor: claris

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

Am I affected?

Timeline

2024-03-21 23:15 UTCPublished CVE record published
2026-06-17 06:24 UTCUpdated Record last modified

claris claris pro MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy claris-pro || rpm -q claris-pro || claris-pro --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

claris filemaker server UPGRADE

Affected: < 20.3.1

Fixed in: 20.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy filemaker-server || rpm -q filemaker-server || filemaker-server --version

2. UPGRADE to 20.3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade filemaker-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade filemaker-server

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-2023-42954?

claris pro: mitigate or apply the listed mitigation; filemaker server: upgrade to 20.3.1. Exact commands for each OS are on this page.

Is CVE-2023-42954 being exploited?

CVE-2023-42954 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-2023-42954 affect?

CVE-2023-42954 affects claris pro, filemaker server. Severity is medium (CVSS 4.9). A privilege escalation issue existed in FileMaker Server, potentially exposing sensitive information to front-end websites when signed in to the Admin Console with an administrator role. This issue has been fixed in FileMaker Server 20.3.1

How urgent is CVE-2023-42954?

Priority 27/100. No elevated risk signals yet.

Related CVEs

CVE-2023-42920 HIGH 7.8 MITIGATE UPGRADE Claris International has fixed a dylib hijacking vulnerability in the FileMaker Pro.app and Claris Pro.app ver

References

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