Personal information disclosure in Nextcloud Talk



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-28845
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Talk
Client/Desktop applications / Messaging software

Vendor Nextcloud

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU74601

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-28845

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to application does not properly filter access to a conversations member list. A remote user without access to the chat room can obtain the list of chat room members via the autocompletion feature.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Talk: 14.0.0 - 15.0.3

CPE2.3 External links

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3m6r-479j-4chf
https://github.com/nextcloud/spreed/pull/8651


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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