CVE-2022-24762: Leaking of user information on Cross-Domain communication in sysend

sysend Updated 02 Oct 2025

Summary

14/03/2022
Yes i
Moderate
6.5

CVE-2022-24762: Leaking of user information on Cross-Domain communication in sysend. Affects sysend versions < 1.10.0. Fixed in 1.10.0. How to fix ↓

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Background

sysend is an npm package that facilitates Cross-Origin communication. It allows users to send messages between different domains within the same browser. This package is commonly used in web applications to enable communication between different components or modules. However, a vulnerability has been discovered in sysend that can lead to the leaking of user information during Cross-Domain communication.

Vulnerability Detail

The vulnerability in sysend allows for the interception of sensitive user information when it is sent through Cross-Domain communication. While this vulnerability only affects communication within the same browser, it can still pose a risk if sensitive data is being transmitted. The impact of this vulnerability is considered moderate. The vulnerability has been assigned the CVE identifier CVE-2022-24762. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 6.5, indicating a moderate severity level.

How To Fix

Minimum fixed version

1.10.0

This is the first release that contains the fix.

npm install sysend@1.10.0

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Workaround

If updating sysend is not immediately feasible, a workaround is to avoid sending sensitive information through sysend messages. Instead, consider alternative methods for transmitting sensitive data that do not rely on Cross-Domain communication.

Conclusion

The vulnerability in sysend that leads to the leaking of user information during Cross-Domain communication has been identified and assigned the CVE identifier CVE-2022-24762. It is recommended to update sysend to version 1.10.0 or later to mitigate this vulnerability. If immediate updating is not possible, it is advised to avoid sending sensitive information through sysend messages. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ

sysend is an npm package that enables Cross-Origin communication within the same browser. It allows messages to be sent between different domains or components of a web application.

Cross-Domain communication refers to the ability to exchange data or messages between different domains within the same browser. It is commonly used in web applications to enable communication between different components or modules.

The impact of this vulnerability is considered moderate. It allows for the interception of sensitive user information during Cross-Domain communication within the same browser.

To fix this vulnerability, it is recommended to update sysend to version 1.10.0 or later. This version includes a patch that addresses the issue and prevents the leaking of user information during Cross-Domain communication.

If updating sysend is not immediately feasible, a workaround is to avoid sending sensitive information through sysend messages. Instead, consider alternative methods for transmitting sensitive data that do not rely on Cross-Domain communication.

How To Fix

Minimum fixed version

1.10.0

This is the first release that contains the fix.

npm install sysend@1.10.0

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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