Security Advisory

CVE-2021-21332

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-03-26 19:55:17

Last updated 2024-08-03 18:09:15

Assigner GitHub_M

State PUBLISHED

Description

Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.27.0, the password reset endpoint served via Synapse was vulnerable to cross-site scripting (XSS) attacks. The impact depends on the configuration of the domain that Synapse is deployed on, but may allow access to cookies and other browser data, CSRF vulnerabilities, and access to other resources served on the same domain or parent domains. This is fixed in version 1.27.0.

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