user_oidc app stores client secret unencrypted in database

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Issuer not verified from obtained token in user_oidc

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Advanced permissions not respected when copying entire group folders

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Nextcloud Talk Path Traversal Vulnerability

Nextcloud Talk is a self-hosted local audio/video and chat communication service from Nextcloud Germany. A path traversal vulnerability exists in versions prior to Nextcloud Talk 17.0.0. An attacker exploited the vulnerability to write files outside of their intended cache directory...

PT-2023-27171 · User Oidc +1 · User Oidc +1

Name of the Vulnerable Software and Affected Versions: user oidc versions 1.0.0 through 1.3.2 Description: The issue affects the user oidc module, which provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. An attacker with at least read access to a snapshot of the...

Nextcloud Security Breach

Nextcloud is an open source suite of self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server. An attacker could use this vulnerability to brute-force break the client secrets of a configured OAuth...

PT-2023-27170 · Nextcloud · Nextcloud +1

Name of the Vulnerable Software and Affected Versions: user oidc versions 1.0.0 through 1.3.2 Description: The issue is related to the missing verification of the issuer in the user oidc module for Nextcloud, allowing an attacker to perform a man-in-the-middle attack by returning corrupted or kno...

CVE-2023-39953: Incorrect Implementation of Authentication Algorithm

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, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also...

PT-2023-27173 · Nextcloud · Nextcloud Talk Android

Name of the Vulnerable Software and Affected Versions: Nextcloud Talk Android versions prior to 17.0.0 Description: Nextcloud Talk Android allows users to place video and audio calls through Nextcloud on Android. An unprotected intent in versions prior to 17.0.0 allowed malicious third-party apps...

Nextcloud user_oidc security vulnerability

Nextcloud useroidc is an application from Nextcloud, Germany. A security vulnerability exists in Nextcloud useroidc version 1.0.0 through versions prior to 1.3.3, which stems from a lack of validation of the issuer...

CVE-2023-39957: Improper Limitation of a Pathname to a Restricted 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...

PT-2023-27172

Name of the Vulnerable Software and Affected Versions Nextcloud Notes app versions 4.4.0 through 4.7.x Description The issue occurs when creating a note file with HTML in the Nextcloud Notes app. Instead of offering the file for download, the content is rendered in the preview. This affects...

CVE-2023-39962: Improper Access Control

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 19.0.0 and prior to versions 19.0.13.10, 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a malicious user could delete any personal or global external...

CVE-2023-39959: Improper Access Control

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...

Nextcloud Access Control Error Vulnerability

Nextcloud is an open source suite of self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. An Access Control Error vulnerability exists in Nextcloud Server. An attacker exploiting this vulnerability could delete any personal or global external...

Nextcloud Access Control Error Vulnerability

Nextcloud is a suite of open source, self-hosted file synchronization and sharing communication application platform from Nextcloud Germany. An access control error vulnerability exists in Nextcloud Server that stems from a lack of password validation...

Nextcloud Access Control Error Vulnerability

Nextcloud is an open source suite of self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. An Access Control Error vulnerability exists in Nextcloud Server. An attacker exploiting this vulnerability could send a DAV request that would indicate to...

CVE-2023-39955: Improper Neutralization of Input During Web Page Generation

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-2023-39963: Improper Access Control

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 20.0.0 and prior to versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a missing password confirmation allowed an attacker, after successfully steali...

CVE-2023-39961: Improper Access Control

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...