CVE-2021-21332

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.

Risk Information

Base Score

8.2

MODERATE

Vector

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

EPSS Score

Exploitation Probability

0.505

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2021-21332,CVE-2021-21333 are fixed in Python-matrix-synapse 1.27.0	Windows
Vulnerabilities CVE-2021-21332,CVE-2021-21333 are fixed in Python-matrix-synapse for linux 1.27.0	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234