CVE-2023-28845 Chat room membership disclosed via autocompletion in Nextcloud talk
Attackers can view member lists of private Nextcloud Talk conversations without being members, exposing user identities.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-28845?
CVE-2023-28845 is a low-severity vulnerability in nextcloud security-advisories, published on 31 Mar 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Nextcloud talk is a video & audio conferencing app for Nextcloud. In affected versions the talk app does not properly filter access to a conversations member list. As a result an attacker could use this vulnerability to gain information about the members of a Talk conversation, even if they themselves are not members. It is recommended that the Nextcloud Talk is upgraded to 14.0.9 or 15.0.4. There are no known workarounds for this vulnerability.
Weakness: CWE-284
Which versions are affected by CVE-2023-28845?
It affects 1 product.
Products include Nextcloud Talk.
How do I fix CVE-2023-28845?
No fix has been published for CVE-2023-28845 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-28845 being exploited?
There is no known exploitation of CVE-2023-28845 in the wild and no public exploit code.
Other vulnerabilities in nextcloud security-advisories
- CVE-2020-8180 Code injection in Nextcloud Talk
- CVE-2021-32689 Nextcloud Talk not properly disassociating users from chats after account deletion
- CVE-2023-39957 Path traversal allows tricking the Talk Android app into writing files into it's root directory
- CVE-2021-32676 Session Fixation in Nextcloud Talk
- CVE-2021-39222 XSS in Talk
Sources
Also known as GHSA-3m6r-479j-4chf.