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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
NVD MITRE
2.6CVSSLOW
EPSS Score
0.9%
Top 44.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:RS:UC:NI:LA:N
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
Open in CVSS calculator →

Weaknesses

CWE-345

Affected Products

matrix-react-sdkmatrix-react-sdk project
Mixed
Communications / messaging-chat
matrix-react-sdknpmOSS Libraries
matrix-react-sdkmatrix-org
Mixed
Communications / messaging-chat
matrix-react-sdk projectoss-projectCommunicationsaka matrix-react-sdk
npmpackage-ecosystemOSS Libraries
matrix-orgoss-projectDECommunicationsaka synapse, matrix-js-sdk, matrix appservice irc

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

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 →

Timeline

Published
Mar 2, 2021
Last Updated
Nov 21, 2024

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