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Leaking of user information on Cross-Domain communication in sysend

Moderate severity GitHub Reviewed Published Mar 13, 2022 in jcubic/sysend.js • Updated Jul 3, 2023

Package

npm sysend (npm)

Affected versions

< 1.10.0

Patched versions

1.10.0

Description

Impact

Users that use Cross-Origin communication and send sensitive information make it possible for this data to be intercepted.
This is not a big impact because it happens only on the same browser.

Patches

It has been patched in version 1.10.0

Workarounds

The only workaround is to not send sensitive information with sysend messages.

References

@jcubic jcubic published to jcubic/sysend.js Mar 13, 2022
Published to the GitHub Advisory Database Mar 14, 2022
Reviewed Mar 14, 2022
Published by the National Vulnerability Database Mar 14, 2022
Last updated Jul 3, 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
None
User interaction
Required
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:N/UI:R/S:U/C:H/I:N/A:N

EPSS score

0.143%
(51st percentile)

Weaknesses

CVE ID

CVE-2022-24762

GHSA ID

GHSA-4vvg-x86p-mvqc

Source code

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