Nextcloud Talk vulnerabilities

CVE-2025-66556 [MEDIUM] CWE-639 CVE-2025-66556: Nextcloud talk is a video & audio conferencing app for Nextcloud. Prior to 20.1.8 and 21.1.2, a part Nextcloud talk is a video & audio conferencing app for Nextcloud. Prior to 20.1.8 and 21.1.2, a participant with chat permissions was able to delete poll drafts of other participants within the conversation based on their numeric ID. This vulnerability is fixed in 20.1.8 and 21.1.2.

CVE-2023-45149 [MEDIUM] CWE-307 CVE-2023-45149: Nextcloud talk is a chat module for the Nextcloud server platform. In affected versions brute force Nextcloud talk is a chat module for the Nextcloud server platform. In affected versions brute force protection of public talk conversation passwords can be bypassed, as there was an endpoint validating the conversation password without registering bruteforce attempts. It is recommended that the Nextcloud Talk app is upgraded to 15.0.8, 16.0.6 or 17.1

CVE-2023-39957 [HIGH] CWE-22 CVE-2023-39957: Nextcloud Talk Android allows users to place video and audio calls through Nextcloud on Android. Pri Nextcloud Talk Android allows users to place video and audio calls through Nextcloud on Android. Prior to version 17.0.0, an unprotected intend allowed malicious third party apps to trick the Talk Android app into writing files outside of its intended cache directory. Nextcloud Talk Android version 17.0.0 has a patch for this issue. No known workaround

CVE-2023-30540 [MEDIUM] CWE-200 CVE-2023-30540: Nextcloud Talk is a chat, video & audio call extension for Nextcloud. In affected versions a user th Nextcloud Talk is a chat, video & audio call extension for Nextcloud. In affected versions a user that was added later to a conversation can use this information to get access to data that was deleted before they were added to the conversation. This issue has been patched in version 15.0.5 and it is recommended that users upgrad to 15.0.5. There are

CVE-2023-28845 [LOW] CWE-284 CVE-2023-28845: Nextcloud talk is a video & audio conferencing app for Nextcloud. In affected versions the talk app 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 Nextclou

CVE-2023-22473 [LOW] CWE-284 CVE-2023-22473: Talk-Android enables users to have video & audio calls through Nextcloud on Android. Due to passcode Talk-Android enables users to have video & audio calls through Nextcloud on Android. Due to passcode bypass, an attacker is able to access the user's Nextcloud files and view conversations. To exploit this the attacker needs to have physical access to the target's device. There are currently no known workarounds available. It is recommended that the Ne

CVE-2022-41926 [MEDIUM] CWE-200 CVE-2022-41926: Nextcould talk android is the android OS implementation of the nextcloud talk chat system. In affect Nextcould talk android is the android OS implementation of the nextcloud talk chat system. In affected versions the receiver is not protected by broadcastPermission allowing malicious apps to monitor communication. It is recommended that the Nextcloud Talk Android is upgraded to 14.1.0. There are no known workarounds for this issue.

CVE-2022-39212 [MEDIUM] CWE-200 CVE-2022-39212: Nextcloud Talk is an open source chat, video & audio calls client for the Nextcloud platform. In aff Nextcloud Talk is an open source chat, video & audio calls client for the Nextcloud platform. In affected versions an attacker could see the last video frame of any participant who has video disabled but a camera selected. It is recommended that the Nextcloud Talk app is upgraded to 13.0.8 or 14.0.4. Users unable to upgrade should select "None" as c

CVE-2022-35932 [MEDIUM] CWE-359 CVE-2022-35932: Nextcloud Talk is a video and audio conferencing app for Nextcloud. Prior to versions 12.2.7, 13.0.7 Nextcloud Talk is a video and audio conferencing app for Nextcloud. Prior to versions 12.2.7, 13.0.7, and 14.0.3, password protected conversations are susceptible to brute force attacks if the attacker has the link/conversation token. It is recommended that the Nextcloud Talk application is upgraded to 12.2.7, 13.0.7 or 14.0.3. There are currently n

CVE-2022-24890 [MEDIUM] CWE-200 CVE-2022-24890: Nextcloud Talk is a video and audio conferencing app for Nextcloud. In versions prior to 13.0.5 and Nextcloud Talk is a video and audio conferencing app for Nextcloud. In versions prior to 13.0.5 and 14.0.0, a call moderator can indirectly enable user webcams by granting permissions, if they were enabled before removing the permissions. A patch is available in versions 13.0.5 and 14.0.0. There are currently no known workarounds.

CVE-2022-24887 [MEDIUM] CWE-601 CVE-2022-24887: Nextcloud Talk is a video and audio conferencing app for Nextcloud, a self-hosted productivity platf Nextcloud Talk is a video and audio conferencing app for Nextcloud, a self-hosted productivity platform. Prior to versions 11.3.4, 12.2.2, and 13.0.0, when sharing a Deck card in conversation, the metaData can be manipulated so users can be tricked into opening arbitrary URLs. This issue is fixed in versions 11.3.4, 12.2.2, and 13.0.0. There are cur

CVE-2021-41180 [MEDIUM] CWE-601 CVE-2021-41180: Nextcloud talk is a self hosting messaging service. In versions prior 12.1.2 an attacker is able to 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 recomm

CVE-2021-41181 [LOW] CWE-200 CVE-2021-41181: Nextcloud talk is a self hosting messaging service. In versions prior to 12.3.0 the Nextcloud Androi 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 us

CVE-2021-39222 [MEDIUM] CWE-79 CVE-2021-39222: Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Talk application was v 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 expl

CVE-2021-32689 [MEDIUM] CWE-200 CVE-2021-32689: Nextcloud Talk is a fully on-premises audio/video and chat communication service. In versions prior 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 u

CVE-2021-32676 [MEDIUM] CWE-384 CVE-2021-32676: Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected 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 vu

CVE-2020-8180 [CRITICAL] CWE-94 CVE-2020-8180: A too lax check in Nextcloud Talk 6.0.4, 7.0.2 and 8.0.7 allowed a code injection when a not correct A too lax check in Nextcloud Talk 6.0.4, 7.0.2 and 8.0.7 allowed a code injection when a not correctly sanitized talk command was added by an administrator.

CVE-2019-15619 [MEDIUM] CWE-79 CVE-2019-15619: Improper neutralization of file names, conversation names and board names in Nextcloud Server 16.0.3 Improper neutralization of file names, conversation names and board names in Nextcloud Server 16.0.3, Nextcloud Talk 6.0.3 and Nextcloud Deck 0.6.5 causes an XSS when linking them with each others in a project.

CVE-2019-15620 [LOW] CWE-287 CVE-2019-15620: Improper access control in Nextcloud Talk 6.0.3 leaks the existance and the name of private conversa 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.

CVE-2018-3781 [MEDIUM] CWE-79 CVE-2018-3781: A missing sanitization of search results for an autocomplete field in NextCloud Talk <3.2.5 could le A missing sanitization of search results for an autocomplete field in NextCloud Talk <3.2.5 could lead to a stored XSS requiring user-interaction. The missing sanitization only affected user names, hence malicious search results could only be crafted by authenticated users.