Read the docs
TI-2023-23031 Aliases CVE-2023-42955GHSA-6gwg-w9p5-2c42

Insufficiently protected credentials in Claris FileMaker Server

Priority LOW 30CWE-257Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-522.

Summary

Claris International has successfully resolved an issue of potentially exposing password 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 eliminating the send of Admin Role passwords in the Node.js socket.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0045 39th percentileScored 2026-11-07
Fix Fixed FileMaker Server (Claris): 20.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ClarisFileMaker Serverbefore 20.3.120.3.1Patch availableCNA
  • FileMaker Server VendorClaris Affected before 20.3.1 Fixed in 20.3.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:claris:filemaker_server:*:*:*:*:*:*:*:*before 20.3.1VulnerableClaris
  • cpe:2.3:a:claris:filemaker_server:*:*:*:*:*:*:*:* Versions before 20.3.1 Vulnerable ·Claris

Remediation

  • Fix · CNA FileMaker Server (Claris) Fixed in 20.3.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-42955
  2. 2026-10-03 Alias added: GHSA-6gwg-w9p5-2c42

References

Advisory 1

  • TI-2025-29047 Code injection in Claris FileMaker Server CVSS 3.1CRITICAL 9.8
  • TI-2026-59422 Authorization bypass in Claris FileMaker Server CVSS 3.1CRITICAL 9.1
  • TI-2026-59421 Out-of-bounds read in Claris FileMaker Server CVSS 3.1CRITICAL 9.1
  • TI-2024-18405 Improper access control in Claris FileMaker Server CVSS 3.1HIGH 7.5
  • TI-2026-59420 Heap-based buffer overflow in Claris FileMaker Server CVSS 3.1HIGH 7.8
  • TI-2023-23030 A privilege escalation issue existed in FileMaker Server, potentially exposing sensitive… CVSS 3.1MEDIUM 6.5
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences