Nextcloud Server

8 CVEs product

Monthly

CVE-2025-66552 MEDIUM PATCH This Month

A security vulnerability in Nextcloud Server and Enterprise Server (CVSS 4.3). Remediation should follow standard vulnerability management procedures. Vendor patch is available.

Information Disclosure Debian Nextcloud Server Nextcloud
NVD GitHub
CVSS 3.1
4.3
EPSS
0.0%
CVE-2025-66547 MEDIUM PATCH This Month

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1.

Authentication Bypass Debian Nextcloud Server Nextcloud
NVD GitHub
CVSS 3.1
4.3
EPSS
0.0%
CVE-2025-66512 MEDIUM PATCH This Month

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 of the Nextcloud Servers web page.

XSS Debian Nextcloud Server Nextcloud Suse
NVD GitHub
CVSS 3.1
5.4
EPSS
0.0%
CVE-2025-66510 MEDIUM PATCH This Month

A security vulnerability in Nextcloud Server (CVSS 4.5) that allows an authenticated user. Remediation should follow standard vulnerability management procedures. Vendor patch is available.

Information Disclosure Debian Nextcloud Server Nextcloud
NVD GitHub
CVSS 3.1
4.5
EPSS
0.0%
CVE-2025-47794 LOW Monitor

Nextcloud Server is a self hosted personal cloud system. Rated low severity (CVSS 2.6), this vulnerability is remotely exploitable. No vendor patch available.

Authentication Bypass Nextcloud Server Nextcloud
NVD GitHub
CVSS 3.1
2.6
EPSS
0.1%
CVE-2025-47793 MEDIUM PATCH Monitor

Nextcloud Server is a self hosted personal cloud system, and the Nextcloud Groupfolders app provides admin-configured folders shared by everyone in a group or team. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.

Denial Of Service Group Folders Nextcloud Server Nextcloud
NVD GitHub
CVSS 3.1
4.3
EPSS
0.3%
CVE-2025-47791 MEDIUM PATCH This Month

Nextcloud Server is a self hosted personal cloud system. Rated medium severity (CVSS 4.3), this vulnerability is no authentication required, low attack complexity. This Server-Side Request Forgery (SSRF) vulnerability could allow attackers to make the server perform requests to unintended internal or external resources.

SSRF Nextcloud Server Nextcloud
NVD GitHub
CVSS 3.1
4.3
EPSS
0.2%
CVE-2025-47790 MEDIUM This Month

Nextcloud Server is a self hosted personal cloud system. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable. No vendor patch available.

PHP Authentication Bypass Nextcloud Server Nextcloud
NVD GitHub
CVSS 3.1
6.4
EPSS
0.1%
CVE-2025-66552
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

A security vulnerability in Nextcloud Server and Enterprise Server (CVSS 4.3). Remediation should follow standard vulnerability management procedures. Vendor patch is available.

Information Disclosure Debian Nextcloud Server +1
NVD GitHub
CVE-2025-66547
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1.

Authentication Bypass Debian Nextcloud Server +1
NVD GitHub
CVE-2025-66512
EPSS 0% CVSS 5.4
MEDIUM PATCH This Month

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 of the Nextcloud Servers web page.

XSS Debian Nextcloud Server +2
NVD GitHub
CVE-2025-66510
EPSS 0% CVSS 4.5
MEDIUM PATCH This Month

A security vulnerability in Nextcloud Server (CVSS 4.5) that allows an authenticated user. Remediation should follow standard vulnerability management procedures. Vendor patch is available.

Information Disclosure Debian Nextcloud Server +1
NVD GitHub
CVE-2025-47794
EPSS 0% CVSS 2.6
LOW Monitor

Nextcloud Server is a self hosted personal cloud system. Rated low severity (CVSS 2.6), this vulnerability is remotely exploitable. No vendor patch available.

Authentication Bypass Nextcloud Server Nextcloud
NVD GitHub
CVE-2025-47793
EPSS 0% CVSS 4.3
MEDIUM PATCH Monitor

Nextcloud Server is a self hosted personal cloud system, and the Nextcloud Groupfolders app provides admin-configured folders shared by everyone in a group or team. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.

Denial Of Service Group Folders Nextcloud Server +1
NVD GitHub
CVE-2025-47791
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

Nextcloud Server is a self hosted personal cloud system. Rated medium severity (CVSS 4.3), this vulnerability is no authentication required, low attack complexity. This Server-Side Request Forgery (SSRF) vulnerability could allow attackers to make the server perform requests to unintended internal or external resources.

SSRF Nextcloud Server Nextcloud
NVD GitHub
CVE-2025-47790
EPSS 0% CVSS 6.4
MEDIUM This Month

Nextcloud Server is a self hosted personal cloud system. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable. No vendor patch available.

PHP Authentication Bypass Nextcloud Server +1
NVD GitHub

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