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GraphQL: Security breach on Viewer query

Moderate severity GitHub Reviewed Published Jul 22, 2020 in parse-community/parse-server • Updated Oct 26, 2023

Package

npm parse-server (npm)

Affected versions

>= 3.5.0, < 4.3.0

Patched versions

4.3.0

Description

Impact

An authenticated user using the viewer GraphQL query can bypass all read security on his User object and can also bypass all objects linked via relation or Pointer on his User object.

Patches

This vulnerability has been patched in Parse Server 4.3.0.

Workarounds

No

References

See commit 78239ac for details.

References

@davimacedo davimacedo published to parse-community/parse-server Jul 22, 2020
Reviewed Jul 22, 2020
Published to the GitHub Advisory Database Jul 22, 2020
Last updated Oct 26, 2023

Severity

Moderate

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
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
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:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.105%
(44th percentile)

Weaknesses

CVE ID

CVE-2020-15126

GHSA ID

GHSA-236h-rqv8-8q73

Source code

No known source code

Credits

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