CVE-2021-21320

User content sandbox can be confused into opening arbitrary documents

Published: Mar 2, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-345

2.6LOW

Description

matrix-react-sdk is an npm package which is a Matrix SDK for React Javascript. In matrix-react-sdk before version 3.15.0, the user content sandbox can be abused to trick users into opening unexpected documents. The content is opened with a `blob` origin that cannot access Matrix user data, so messages and secrets are not at risk. This has been fixed in version 3.15.0.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:HAttack Complexity

High

PR:LPrivileges Required

Low

UI:RUser Interaction

Required

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-345

Affected Products

matrix-react-sdk project

oss-projectaka matrix-react-sdk

matrix-react-sdkMixed

Communications / messaging-chat

package-ecosystem

oss-project·DEaka matrix appservice irc, synapse, matrix-js-sdk

matrix-react-sdkLibraryLibrary

Communications / messaging-chat

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Collection

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References

https://github.com/matrix-org/matrix-react-sdk/commit/b386f0c73b95ecbb6ea7f8f79c6ff5171a8dedd1

github.com

https://github.com/matrix-org/matrix-react-sdk/pull/5657

github.com

https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-52mq-6jcv-j79x

github.com

and 2 more references View all →

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