Information Disclosure

2023-11-0108:58:43

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

matrix_synapse

information disclosure

vulnerability

missing validation check

user_id parameter

remote users

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.8

Confidence

Low

EPSS

0.001

Percentile

47.7%

JSON

matrix_synapse is vulnerable to Information Disclosure. The vulnerability is caused by a missing validation check for the user_id parameter used to query cached device information of remote users. This can lead to enumerating the remote users known to a homeserver.