CVE-2021-44147Public exploitNetwork attack vector

File disclosure and SSRF via external entities

Published Nov 22, 2021 · Updated Aug 4, 2024

XXE in Claris FileMaker Pro and Server before 19.4.1 allows remote attackers to disclose local files and issue server-side requests. The Import Records XML parser permits external entities and external DTDs in crafted XML or Excel documents, causing resolution of attacker-chosen file and network URIs. Exploitation requires an import-capable account or auto-login exposure; opening a crafted snapshot link can also trigger client-side processing.

CVSS severity5.5
Medium
EPSS probability1.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

XXE in Claris FileMaker Pro and Server before 19.4.1 allows remote attackers to disclose local files and issue server-side requests. The Import Records XML parser permits external entities and external DTDs in crafted XML or Excel documents, causing resolution of attacker-chosen file and network URIs. Exploitation requires an import-capable account or auto-login exposure; opening a crafted snapshot link can also trigger client-side processing.

The record

CVE
CVE-2021-44147
Published
Nov 22, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-611, T1190, T1204.002
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Nov 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
4.3NVDAV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1190Exploit Public-Facing Application
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo