CVE-2021-21333

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 notification emails sent for notifications for missed messages or for an expiring account are subject...

CVE-2021-21333 HTML injection in email and account expiry notifications

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 notification emails sent for notifications for missed messages or for an expiring account are subject...

CVE-2021-21333

CVE-2021-21333 affects Synapse (matrix-synapse) before version 1.27.0. The notification emails for missed messages and for expiring accounts are subject to HTML injection, enabling an attacker to forge email content in the missed-messages notification. The account-expiry feature is not enabled by...

CVE-2021-21332

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...

CVE-2021-21332 Cross-site scripting (XSS) vulnerability in the password reset endpoint

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...

CVE-2021-21332

CVE-2021-21332 describes an XSS vulnerability in the password reset endpoint of Synapse (Matrix reference homeserver, Python). Prior to version 1.27.0, an attacker could execute script via the password_reset flow, potentially access cookies and browser data, and leverage CSRF risks on the same do...

GHSA-246W-56M2-5899 Cross-site scripting (XSS) vulnerability in the password reset endpoint

Impact 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...

Cross-site scripting (XSS) vulnerability in the password reset endpoint

Impact 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...

Matrix Synapse 跨站脚本漏洞

Matrix Synapse is a Matrix Management Server implementation from the Matrix Foundation in the UK. A cross-site scripting vulnerability was previously present in Matrix Synapse version 1.27.0, which allowed an attacker to exploit the vulnerability to insert forged content into an email message...

Apache Synapse 跨站脚本漏洞

Matrix Synapse is a Matrix Management Server implementation from the Matrix Foundation in the UK. A cross-site scripting vulnerability exists in Matrix Synapse versions prior to 1.27.0, which can be exploited by attackers to access cookies and other browser data...

Matrix Synapse Denial of Service Vulnerability (CNVD-2021-15493)

Matrix Synapse is a Matrix Management Server implementation from the Matrix Foundation in the UK. A denial of service vulnerability exists in Synapse versions prior to 1.25.0, which stems from a malicious homeserver that redirects requests to a large file, which could lead to a denial of service...

Denial Of Service (DoS)

matrix-synapse is vulnerable to denial of service. A malicious homeserver is able to redirect requests to a very large .well-known file that leads to a denial of service condition where homeservers will consume significantly more resources when requesting the malicious .well-known file...

Denial Of Service (DoS)

matrix-synapse is vulnerable to denial of service DoS. The vulnerability exists as a malicious homeserver could redirect requests to their .well-known file to a large file...

CVE-2021-21274

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 1.25.0, a malicious homeserver could redirect requests to their .well-known file to a large file. This can lead t...

DEBIAN-CVE-2021-21274

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 1.25.0, a malicious homeserver could redirect requests to their .well-known file to a large file. This can lead t...

DEBIAN-CVE-2021-21273

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 1.25.0, requests to user provided domains were not restricted to external IP addresses when calculating the key...

CVE-2021-21273

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 1.25.0, requests to user provided domains were not restricted to external IP addresses when calculating the key...

CVE-2021-21274

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 1.25.0, a malicious homeserver could redirect requests to their .well-known file to a large file. This can lead t...

CVE-2021-21273

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 1.25.0, requests to user provided domains were not restricted to external IP addresses when calculating the key...

PYSEC-2021-131

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 1.25.0, requests to user provided domains were not restricted to external IP addresses when calculating the key...