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Exposure of Sensitive Information in eventsource

Critical severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Nov 28, 2023

Package

npm eventsource (npm)

Affected versions

< 1.1.1
>= 2.0.0, < 2.0.2

Patched versions

1.1.1
2.0.2

Description

When fetching an url with a link to an external site (Redirect), the users Cookies & Autorisation headers are leaked to the third party application. According to the same-origin-policy, the header should be "sanitized."

References

Published by the National Vulnerability Database May 12, 2022
Published to the GitHub Advisory Database May 13, 2022
Reviewed May 25, 2022
Last updated Nov 28, 2023

Severity

Critical

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
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
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:N/UI:R/S:C/C:H/I:H/A:N

EPSS score

0.374%
(74th percentile)

Weaknesses

CVE ID

CVE-2022-1650

GHSA ID

GHSA-6h5x-7c5m-7cr7

Source code

Credits

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