CVE-2023-28103

Prototype pollution in matrix-react-sdk

Description

matrix-react-sdk is a Matrix chat protocol SDK for React Javascript. In certain configurations, data sent by remote servers containing special strings in key locations could cause modifications of the `Object.prototype`, disrupting matrix-react-sdk functionality, causing denial of service and potentially affecting program logic. This is fixed in matrix-react-sdk 3.69.0 and users are advised to upgrade. There are no known workarounds for this vulnerability. Note this advisory is distinct from GHSA-2x9c-qwgf-94xr which refers to a similar issue.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.23%
Vendor Advisory github.com Vendor Advisory matrix.org
Affected: matrix-org matrix-react-sdk
Published at:
Updated at:

References

Link Tags
https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-6g43-88cp-w5gv vendor advisory
https://matrix.org/blog/2023/03/28/security-releases-matrix-js-sdk-24-0-0-and-matrix-react-sdk-3-69-0 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-28103?
CVE-2023-28103 has been scored as a high severity vulnerability.
How to fix CVE-2023-28103?
To fix CVE-2023-28103, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-28103 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-28103 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-28103?
CVE-2023-28103 affects matrix-org matrix-react-sdk.
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