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Possible prototype pollution in metadata record, when using meta decorator

Low severity GitHub Reviewed Published Apr 28, 2023 in aedart/ion • Updated Nov 7, 2023

Package

npm @aedart/support (npm)

Affected versions

< 0.6.1

Patched versions

0.6.1

Description

Impact

Possible prototype pollution for the MetadataRecord, when merged with a base class' metadata object, in meta decorator from the @aedart/support package.

The likelihood is questionable, given that a class' metadata can only be set or altered when the class is decorated via meta(). Furthermore, object(s) of sensitive nature would have to be stored as metadata, before this can become a vulnerability.

Patches

Has been patched in version 0.6.1.

References

@aedart aedart published to aedart/ion Apr 28, 2023
Published by the National Vulnerability Database Apr 28, 2023
Published to the GitHub Advisory Database May 1, 2023
Reviewed May 1, 2023
Last updated Nov 7, 2023

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS score

0.086%
(38th percentile)

Weaknesses

CVE ID

CVE-2023-30857

GHSA ID

GHSA-wwxh-74fx-33c6

Source code

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