What is the CVSS score of CVE-2021-44147?

CVE-2021-44147 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.1%.

Is there a public PoC exploit available for CVE-2021-44147?

Yes, a public proof-of-concept exploit is available for CVE-2021-44147. Prioritise patching immediately. EPSS: 1.1%.

Filemaker Pro CVE-2021-44147

MEDIUM

Improper Restriction of XML External Entity Reference (CWE-611)

2021-11-22 cve@mitre.org

SSRF XXE Filemaker Pro Filemaker Server

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Nov 22, 2021 - 22:15 nvd

MEDIUM 5.5

DescriptionNVD

AnalysisAI

An XML External Entity issue in Claris FileMaker Pro and Server (including WebDirect) before 19.4.1 allows a remote attacker to disclose local files via a crafted XML/Excel document and perform. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as XML External Entity (XXE) (CWE-611), which allows attackers to read arbitrary files or perform SSRF through XML processing. An XML External Entity issue in Claris FileMaker Pro and Server (including WebDirect) before 19.4.1 allows a remote attacker to disclose local files via a crafted XML/Excel document and perform server-side request forgery attacks. Affected products include: Claris Filemaker Pro, Claris Filemaker Server. Version information: before 19.4.1.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Disable external entity processing in XML parsers, use JSON instead of XML where possible.