#VU56226 Information disclosure in Synapse - CVE-2021-39163
Published: September 1, 2021
Vulnerability identifier: #VU56226
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-39163
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Synapse
Synapse
Software vendor:
Matrix.org
Matrix.org
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote authenticated attacker can access the name, avatar, topic and number of members of a room if they know the ID of the room.
Remediation
Install updates from vendor's website.