CVSS: 2.4EPSS: 0%CPEs: 1EXPL: 0CVE-2021-41181 – Nextcloud Talk app exposes chat messages on lockscreen
https://notcve.org/view.php?id=CVE-2021-41181
Nextcloud talk is a self hosting messaging service. In versions prior to 12.3.0 the Nextcloud Android Talk application did not properly detect the lockscreen state when a call was incoming. If an attacker got physical access to the locked phone, and the victim received a phone call the attacker could gain access to the chat messages and files of the user. It is recommended that the Nextcloud Android Talk App is upgraded to 12.3.0. There are no known workarounds. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-497c-c8hx-6qcf https://github.com/nextcloud/talk-android/pull/1585 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-287: Improper Authentication •
CVSS: 6.1EPSS: 0%CPEs: 1EXPL: 1CVE-2021-41180 – Geolocation preview links can be set to arbitrary links in nextcloud talk
https://notcve.org/view.php?id=CVE-2021-41180
Nextcloud talk is a self hosting messaging service. In versions prior 12.1.2 an attacker is able to control the link of a geolocation preview in the Nextcloud Talk application due to a lack of validation on the link. This could result in an open-redirect, but required user interaction. This only affected users of the Android Talk client. It is recommended that the Nextcloud Talk App is upgraded to 12.1.2. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92 https://github.com/nextcloud/spreed/pull/6239 https://hackerone.com/reports/1337178 • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •
CVSS: 6.4EPSS: 0%CPEs: 3EXPL: 0CVE-2021-39222 – XSS in Talk
https://notcve.org/view.php?id=CVE-2021-39222
Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Talk application was vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. For exploitation, a user would need to right-click on a malicious file and open the file in a new tab. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Talk application is upgraded to patched versions 10.0.7, 10.1.4, 11.1.2, 11.2.0 or 12.0.0. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xhxq-f4vg-jw5g https://github.com/nextcloud/spreed/pull/542 https://hackerone.com/reports/1135481 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-434: Unrestricted Upload of File with Dangerous Type •
CVSS: 8.1EPSS: 0%CPEs: 1EXPL: 0CVE-2021-32689 – Nextcloud Talk not properly disassociating users from chats after account deletion
https://notcve.org/view.php?id=CVE-2021-32689
Nextcloud Talk is a fully on-premises audio/video and chat communication service. In versions prior to 11.2.2, if a user was able to reuse an earlier used username, they could get access to any chat message sent to the previous user with this username. The issue was patched in versions 11.2.2 and 11.3.0. As a workaround, don't allow users to choose usernames themselves. This is the default behaviour of Nextcloud, but some user providers may allow doing so. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xv6f-344w-895c https://github.com/nextcloud/spreed/pull/5633 https://github.com/nextcloud/spreed/releases/tag/v11.2.2 https://github.com/nextcloud/spreed/releases/tag/v11.3.0 https://hackerone.com/reports/1200700 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-708: Incorrect Ownership Assignment •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-32676 – Session Fixation in Nextcloud Talk
https://notcve.org/view.php?id=CVE-2021-32676
Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected shared chats in Talk before version 9.0.10, 10.0.8 and 11.2.2 did not rotate the session cookie after a successful authentication event. It is recommended that the Nextcloud Talk App is upgraded to 9.0.10, 10.0.8 or 11.2.2. No workarounds for this vulnerability are known to exist. Nextcloud Talk es un servicio de comunicación de audio/vídeo y chat totalmente local. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p6h7-84v4-827r https://hackerone.com/reports/1181962 • CWE-384: Session Fixation •