Safety vulnerability ID: 40106
The information on this page was manually curated by our Cybersecurity Intelligence Team.
Matrix-synapse 1.27.0 includes a fix for CVE-2021-21332: 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.
Latest version: 1.121.1
Homeserver for the Matrix decentralised comms protocol
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. See CVE-2021-21332.
CONFIRM:https://github.com/matrix-org/synapse/security/advisories/GHSA-246w-56m2-5899: https://github.com/matrix-org/synapse/security/advisories/GHSA-246w-56m2-5899
MISC:https://github.com/matrix-org/synapse/commit/e54746bdf7d5c831eabe4dcea76a7626f1de73df: https://github.com/matrix-org/synapse/commit/e54746bdf7d5c831eabe4dcea76a7626f1de73df
MISC:https://github.com/matrix-org/synapse/pull/9200: https://github.com/matrix-org/synapse/pull/9200
MISC:https://github.com/matrix-org/synapse/releases/tag/v1.27.0: https://github.com/matrix-org/synapse/releases/tag/v1.27.0
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