Vulnerability CVE-2019-15620
Published: 2020-02-04

Description:
Improper access control in Nextcloud Talk 6.0.3 leaks the existance and the name of private conversations when linked them to another shared item via the projects feature.

Type:

CWE-200

 (Information Exposure)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Nextcloud -> TALK 

 References:
https://hackerone.com/reports/662218
https://nextcloud.com/security/advisory/?id=NC-SA-2020-011
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