CVE-2025-66512 Nextcloud Server vulnerable to XSS in SVG images when opened outside of Nextcloud

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Server Enterprise prior to 31.0.12 and 32.0.3, a missing sanitization allowed malicious users to circumvent the content security policy when a malicious user manages to trick a user it viewing an uploaded SVG outside...

CVE-2025-66512

Nextcloud Server and Server Enterprise before 31.0.12 and 32.0.3 have a missing sanitization that can be exploited to bypass content security policy when a user is tricked into viewing a crafted SVG outside the Nextcloud UI, enabling cross-site scripting. Fedora advisories FEDORA-2025-86c0829159 ...

CVE-2025-66510 Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users emails, names, identifiers without prop...

EUVD-2025-201451

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users emails, names, identifiers without prop...

CVE-2025-66510 Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users emails, names, identifiers without prop...

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...

CVE-2025-66510 Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users emails, names, identifiers without prop...

XSS in SVG images when opened outside of Nextcloud

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Approval app allows users to request approval for other users file

None...

Calendar app allowed booking appointments without the generated token

None...

Calendar attachments of local files are offered to downloaded

None...

admin_audit does not log all actions on files in groupfolders

None...

PT-2025-49266

Nextcloud Calendar is a calendar app for Nextcloud. Prior to 6.0.3, the Calendar app generates participant tokens for meeting proposals using a hash function, allowing an attacker to compute valid participant tokens, which allowed them to request details and submit dates in meeting proposals. The...

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...

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 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...

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...

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...

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...

PT-2025-49301

Name of the Vulnerable Software and Affected Versions Nextcloud talk versions prior to 20.1.8 Nextcloud talk versions prior to 21.1.2 Description A participant with chat permissions could delete poll drafts of other participants within a conversation by using their numeric ID. This issue affects...