CVE-2021-213202.6LowCWE-345

CVE-2021-21320: User content sandbox can be confused into opening arbitrary documents

matrix-org · matrix-react-sdk

Affected: matrix-org matrix-react-sdk · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.9%probability of exploitation in the next 30 days

60th percentile

050100

Higher than 60% of scored CVEs

2.6LowCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

matrix-org · matrix-react-sdk< 3.15.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Insufficient Verification of Data Authenticity · Cryptography
Vendor: matrix-org
Published: March 2021
Band: Unlikely (under 1%), March 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-21320 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.