VulnerabilityPublished 16 Dec 2025

CVE-2025-46296: Claris FileMaker Server · Improper Authorization

Affects Claris FileMaker ServerSource CVE Database V5

Not known to be exploited · CVSS 5.4 Medium : upgrade to 22.0.4 when convenient.

Data as of 26 Oct 2026, 09:08 UTC

CVSS 3.1 base score

5.4Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 22.0.4

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 16 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Claris FileMaker Server to 22.0.4.

Affected software

Product	Affected	Fixed in
Claris FileMaker Server	Affected <22.0.4	Fixed in 22.0.4

AI-suggested

1. Apply the official patch by upgrading FileMaker Server to version 22.0.4 or later, where the vulnerability is fully addressed. 2. Restrict access to the Admin Console strictly to trusted administrators and limit the number of accounts with any administrative privileges, even minimal ones. 3. Implement network-level access controls such as VPNs or IP whitelisting to limit exposure of the Admin Console interface. 4. Regularly audit and review administrator roles and privileges to ensure the principle of least privilege is enforced. 5. Monitor administrative logs and access patterns for unusual activity that could indicate exploitation attempts. 6. Consider additional application-layer controls or web application firewalls to detect and block unauthorized access attempts. 7. Educate administrators about the risks of privilege misuse and enforce strong authentication mechanisms, such as multi-factor authentication, for admin accounts.

Description

CVE-2025-46296 is an authorization bypass vulnerability in Claris FileMaker Server Admin Console that allows administrator roles with minimal privileges to access sensitive administrative features, including viewing license details and downloading application logs. The flaw does not require user interaction and can be exploited remotely over the network with low attack complexity. Although it does not allow full administrative control or code execution, it compromises confidentiality and integrity by exposing sensitive information and administrative functions. The vulnerability affects unspecified versions prior to FileMaker Server 22.0.4, where it has been fully patched. The CVSS score is 5.4 (medium severity), reflecting limited impact and moderate exploitability. European organizations using FileMaker Server should prioritize patching to prevent unauthorized access to administrative data. Countries with significant adoption of Claris FileMaker Server and critical infrastructure relying on it are at higher risk.

Impact

For European organizations, this vulnerability poses a risk of unauthorized disclosure of sensitive administrative information such as license details and application logs, which could be leveraged for further attacks or to gain insights into the organization's infrastructure. While it does not allow full administrative control or direct disruption, the exposure of logs and license data can aid attackers in reconnaissance and lateral movement. Organizations in sectors relying on FileMaker Server for critical business applications, including government, finance, healthcare, and manufacturing, may face increased risk if minimal privilege admin accounts are compromised or misused. The breach of confidentiality and integrity could lead to compliance issues under GDPR if personal or sensitive data is indirectly exposed through logs. The medium severity suggests a moderate but non-trivial impact, emphasizing the importance of timely patching and access control hardening to prevent exploitation.

CWE-285Improper Authorization (opens in a new tab)
Class weaknessLikelihood of exploit: HighOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Architecture and Design
Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries.
Architecture and Design
Ensure that you perform access control checks related to your business logic. These checks may be different than the access control checks that you apply to more generic resources such as files, connections, processes, memory, and database records.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.8 (opens in a new tab)
V13.4.2 (opens in a new tab)
V7.2.2 (opens in a new tab)
Attack patterns
Accessing Functionality Not Properly Constrained by ACLs (opens in a new tab)
Cross Zone Scripting (opens in a new tab)
Directory Indexing (opens in a new tab)
Subverting Environment Variable Values (opens in a new tab)
Using Malicious Files (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

support.claris.com/s/answerview?anum=000049056&language=en_US (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 23 Dec 2025, 19:34 UTC

WeaknessesCWE-285

Technical details

References

Community reviews

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