CVE-2025-66510

CVE-2025-66510 affects Nextcloud Server and Nextcloud Enterprise Server where the contact search feature can disclose personal data (emails, names, identifiers) of other users to authenticated users due to improper access control. Affected versions include Nextcloud Server prior to 31.0.10 and 32...

XSS in SVG images when opened outside of Nextcloud

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Approval app allows users to request approval for other users file

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Calendar app allowed booking appointments without the generated token

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Calendar attachments of local files are offered to downloaded

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admin_audit does not log all actions on files in groupfolders

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Nextcloud 授权问题漏洞

Nextcloud is an open source suite of self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. Nextcloud suffers from an authorization issue vulnerability that originates from a requestor being able to set another person's file to a pending approval...

CVE-2025-66514: Improper Neutralization of Input During Web Page Generation

Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. Prior to 5.5.3, a stored HTML injection in the Mail app's message list allowed an authenticated user to inject HTML into the email subjects. Javascript was correctly blocked by the content security policy of the...

Nextcloud Desktop Client 访问控制错误漏洞

Nextcloud Desktop Client is an open source file synchronization and sharing tool from Nextcloud GmbH. An access control error vulnerability exists in Nextcloud Desktop Client versions prior to 1.14.6 and prior to 1.15.2, which stems from an error in the permissions logic and could lead to misuse ...

Nextcloud Talk 安全漏洞

Nextcloud Talk is a self-hosted local audio/video and chat communication service from Nextcloud Germany. A security vulnerability exists in Nextcloud talk versions prior to 20.1.8 and prior to 21.1.2, which stems from the ability of a participant with chat privileges to delete drafts of other...

Nextcloud Calendar 安全漏洞

Nextcloud Calendar is an open source calendar application from Nextcloud. A security vulnerability exists in Nextcloud Calendar versions prior to 4.7.17 and prior to 5.2.4, which stems from a malicious user being able to create specially crafted attachments that could result in files being...

PT-2025-49268

Name of the Vulnerable Software and Affected Versions Nextcloud Server and Enterprise Server versions prior to 31.0.1 Description Non-privileged users can modify tags on files they should not have access to through bulk tagging. This affects a self-hosted personal cloud system. Recommendations...

PT-2025-49269

Name of the Vulnerable Software and Affected Versions Nextcloud Server versions prior to 30.0.9 Nextcloud Server versions prior to 31.0.1 Description An issue exists in Nextcloud Server and Enterprise Server related to incorrect path handling with groupfolders. This resulted in the admin audit ap...

PT-2025-49291

Name of the Vulnerable Software and Affected Versions Nextcloud Tables versions prior to 0.8.6 Nextcloud Tables versions prior to 0.9.3 Description A malicious user could create a table and move a column into another user's table. This action was possible in versions before 0.8.6 and 0.9.3...

Nextcloud Desktop Client 安全漏洞

Nextcloud Desktop Client is an open source file synchronization and sharing tool from Nextcloud GmbH. A security vulnerability exists in Nextcloud Desktop Client versions prior to 3.16.5, which stems from the unencrypted sending of file paths in an end-to-end encrypted directory, which could lead...

Nextcloud Server 安全漏洞

Nextcloud Server is a Nextcloud server program open-sourced by Nextcloud. A security vulnerability exists in Nextcloud Server versions prior to 31.0.12 and prior to 32.0.3, which stems from insufficient cleanup and could lead to content security policy bypass...

PT-2025-49289

Name of the Vulnerable Software and Affected Versions Nextcloud Calendar versions prior to 4.7.19 Nextcloud Calendar versions prior to 5.5.6 Nextcloud Calendar versions prior to 6.0.1 Description The Nextcloud Calendar application contained a flaw where appointments could be booked without knowin...

Nextcloud Server 安全漏洞

Nextcloud Server is a Nextcloud server program open-sourced by Nextcloud. A security vulnerability exists in Nextcloud Server that stems from improper access control of the contact search feature, which could lead to information disclosure...

CVE-2025-66553: Authorization Bypass Through User-Controlled Key

Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.7 and 0.9.4, authenticated users were able to view meta data of columns in other tables of the Tables app by modifying the numeric ID in a request. This vulnerability is fixed in 0.8.7 and 0.9.4...

CVE-2025-66548: Improper Encoding or Escaping of Output

Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. Prior to 1.12.7, 1.14.4, and 1.15.1, file extension can be spoofed by using RTLO characters, tricking users into download files with a different extension th...