CVE-2021-32622

File upload local preview can run embedded scripts after user interaction

CVSS 4.2 MEDIUMEPSS 0.4%CWE-74

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 4.2EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

17 mai 2021Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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. This vulnerability is patched in version 3.21.0.

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

Produtos afetados

matrix-org · matrix-react-sdk

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Referências

https://github.com/matrix-org/matrix-react-sdk/pull/5981 https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv