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CVSS: 8.7EPSS: 0%CPEs: 1EXPL: 0

matrix-react-sdk is react-based software development kit for inserting a Matrix chat/VOIP client into a web page. Starting in version 3.18.0 and before 3.102.0, matrix-react-sdk allows a malicious homeserver to potentially steal message keys for a room when a user invites another user to that room, via injection of a malicious device controlled by the homeserver. This is possible because matrix-react-sdk before 3.102.0 shared historical message keys on invite. Version 3.102.0 fixes this issue by disabling sharing message keys on invite by removing calls to the vulnerable functionality. No known workarounds are available. • https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-qcvh-p9jq-wp8v https://github.com/matrix-org/matrix-react-sdk/pull/12618 https://github.com/matrix-org/matrix-react-sdk/commit/6fc9d7641c51ca3db8225cf58b9d6e6fdd2d6556 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 7.7EPSS: 0%CPEs: 1EXPL: 0

matrix-react-sdk is a react-based SDK for inserting a Matrix chat/voip client into a web page. A malicious homeserver could manipulate a user's account data to cause the client to enable URL previews in end-to-end encrypted rooms, in which case any URLs in encrypted messages would be sent to the server. This was patched in matrix-react-sdk 3.105.0. Deployments that trust their homeservers, as well as closed federations of trusted servers, are not affected. Users are advised to upgrade. • https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.105.1 https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-f83w-wqhc-cfp4 • CWE-359: Exposure of Private Personal Information to an Unauthorized Actor •

CVSS: 5.4EPSS: 0%CPEs: 1EXPL: 0

matrix-react-sdk is a react-based SDK for inserting a Matrix chat/VoIP client into a web page. Prior to version 3.71.0, plain text messages containing HTML tags are rendered as HTML in the search results. To exploit this, an attacker needs to trick a user into searching for a specific message containing an HTML injection payload. No cross-site scripting attack is possible due to the hardcoded content security policy. Version 3.71.0 of the SDK patches over the issue. • https://github.com/matrix-org/matrix-react-sdk/commit/bf182bc94556849d7acdfa0e5fdea2aa129ea826 https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.71.0 https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-xv83-x443-7rmw • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •

CVSS: 8.2EPSS: 0%CPEs: 1EXPL: 0

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. • https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-6g43-88cp-w5gv https://matrix.org/blog/2023/03/28/security-releases-matrix-js-sdk-24-0-0-and-matrix-react-sdk-3-69-0 • CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

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. • https://github.com/matrix-org/matrix-react-sdk/pull/5981 https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE-434: Unrestricted Upload of File with Dangerous Type •