Description
Matrix-React-SDK is a react-based SDK for inserting a Matrix chat/voip client into a web page. Before version 3.21.0, when uploading a file, the local file preview can lead to execution of scripts embedded in the uploaded file. This can only occur after several user interactions to open the preview in a separate tab. This only impacts the local user while in the process of uploading. It cannot be exploited remotely or by other users. This vulnerability is patched in version 3.21.0.
Remediation
References
https://github.com/matrix-org/matrix-react-sdk/pull/5981
https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv
Related Vulnerabilities
CVE-2022-37435 Vulnerability in maven package org.apache.shenyu:shenyu-admin
CVE-2022-39299 Vulnerability in npm package node-saml
CVE-2022-3952 Vulnerability in maven package com.manydesigns:portofino-microservice-launcher
CVE-2018-3717 Vulnerability in npm package anywhere
CVE-2023-0868 Vulnerability in maven package org.opennms:opennms-webapp