CVE-2021-21320CWE-345

User content sandbox can be confused into opening arbitrary documents

Low · published March 2, 2021

CVSS v3.1
2.6
EPSS
1%
Percentile
59.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
2.6 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00922 · 59.9th percentile
Weakness
CWE-345 · Insufficient Verification of Data Authenticity
Published
2021-03-02T02:45Z
EPSS history
Timeline
  • 02 MAR 02:45Z
    User content sandbox can be confused into opening arbitrary documents
    cvelistv5