CVE-2023-39961 Text does not respect "Allow download" permissions

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 24.0.4 and prior to versions 25.0.9, 26.0.4, and 27.0.1, when a folder with images or an image was shared without download permissions, the user could add the image inline into a text file and...

CVE-2023-39961 Text does not respect "Allow download" permissions

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 24.0.4 and prior to versions 25.0.9, 26.0.4, and 27.0.1, when a folder with images or an image was shared without download permissions, the user could add the image inline into a text file and...

CVE-2023-39961

Technical details about CVE-2023-39961 are not provided in the connected documents. The sources summarize Nextcloud fixes but do not expose exploit specifics or affected versions beyond the initial description. Monitor for updates.

CVE-2023-39961 Text does not respect "Allow download" permissions

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 24.0.4 and prior to versions 25.0.9, 26.0.4, and 27.0.1, when a folder with images or an image was shared without download permissions, the user could add the image inline into a text file and...

CVE-2023-39959 Existence of calendars and address books can be checked by unauthenticated users

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.9, 26.0.4, and 27.0.1, unauthenticated users could send a DAV request which reveals whether a calendar or an address book with the given identifier exists for...

CVE-2023-39959

CVE-2023-39959 affects Nextcloud Server. Unauthenticated users could send a DAV request to determine whether a calendar or address book with a given identifier exists on victims’ accounts. Affected are Nextcloud Server versions prior to 25.0.9, 26.0.4, and 27.0.1 (and corresponding Enterprise Ser...

CVE-2023-39959 Existence of calendars and address books can be checked by unauthenticated users

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.9, 26.0.4, and 27.0.1, unauthenticated users could send a DAV request which reveals whether a calendar or an address book with the given identifier exists for...

CVE-2023-39959 Existence of calendars and address books can be checked by unauthenticated users

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.9, 26.0.4, and 27.0.1, unauthenticated users could send a DAV request which reveals whether a calendar or an address book with the given identifier exists for...

CVE-2023-39958 Missing brute force protection on password reset token OAuth2 API controller

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, missing protection allows an attacker to brute force the client secrets of configured OAuth2 clients...

CVE-2023-39958

CVE-2023-39958 affects Nextcloud Server where, in versions 22.0.0 through 22.2.x, 23.x, 24.x, 25.x, 26.x and 27.x, missing protection allowed brute-forcing of OAuth2 client secrets. The issue is mitigated by patches in Nextcloud Server: 25.0.9, 26.0.4, 27.0.1 and corresponding Enterprise Server p...

CVE-2023-39958 Missing brute force protection on password reset token OAuth2 API controller

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, missing protection allows an attacker to brute force the client secrets of configured OAuth2 clients...

CVE-2023-39958 Missing brute force protection on password reset token OAuth2 API controller

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, missing protection allows an attacker to brute force the client secrets of configured OAuth2 clients...

CVE-2023-39957

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 versi...

Design/Logic Flaw

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 versi...

CVE-2023-39954

useroidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, an attacker that obtained at least read access to a snapshot of the database can impersonate the Nextcloud server towards linked servers. useroidc...

CVE-2023-39955

Notes is a note-taking app for Nextcloud, an open-source cloud platform. Starting in version 4.4.0 and prior to version 4.8.0, when creating a note file with HTML, the content is rendered in the preview instead of the file being offered to download. Nextcloud Notes app version 4.8.0 contains a...

Code injection

useroidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, an attacker that obtained at least read access to a snapshot of the database can impersonate the Nextcloud server towards linked servers. useroidc...

Design/Logic Flaw

Notes is a note-taking app for Nextcloud, an open-source cloud platform. Starting in version 4.4.0 and prior to version 4.8.0, when creating a note file with HTML, the content is rendered in the preview instead of the file being offered to download. Nextcloud Notes app version 4.8.0 contains a...

CVE-2023-39957 Path traversal allows tricking the Talk Android app into writing files into it's root directory

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 versi...

CVE-2023-39957

CVE-2023-39957 affects Nextcloud Talk Android prior to 17.0.0, where an unprotected intent allowed malicious apps to trick Talk Android into writing files outside its intended cache directory (path traversal). A fix is available in version 17.0.0; no public workarounds are documented in the provi...