CVE Intelligence

Owncloud vulnerabilities

🔔 Create alert RSS

Published CVEs affecting Owncloud products: 9 record(s), with severity, exploitation and fixes.

Exploited only (KEV) →

CVE-2025-53831 High · 8.2 CWE-79 Jul 6, 2026
DrawIO for ownCloud 10 is vulnerable to Stored XSS
DrawIO for ownCloud is an application for using DrawIO with the file storage, synchronization, and sharing application ownCloud Classic. In DrawIO for ownCloud prior to version 1.0.2, which corresponds to ownCloud 10 prior to version 10.15.3, attackers with access to the DrawIO app can leverage improper neutralization of input during web page generation to achieve stored XSS. Upgrade ownCloud 10 to version 10.15.3 or later or upgrade DrawIO for ownCloud 10 to version 1.0.2 or later to receive a patch.
CVE-2025-53830 Critical · 9.1 CWE-918 Jul 6, 2026
Anti-Virus for ownCloud 10 is vulnerable to Server-Side Request Forgery (SSRF)
Anti-Virus for ownCloud is an anti-virus application for file storage, synchronization, and sharing application ownCloud. Versions of Anti-Virus for ownCloud before 1.2.3 are vulnerable to Server-Side Request Forgery (SSRF). This corresponds to versions of ownCloud 10 prior to 10.15.3. Upgrade ownCloud 10 to version 10.15.3 or later or upgrade Anti-Virus for ownCloud 10 to version 1.2.3 or later to receive a fix.
CVE-2025-53829 High · 8.0 CWE-23 Jul 6, 2026
ownCloud 10 is vulnerable to Relative Path Traversal
ownCloud is a file storage, synchronization, and sharing application. In ownCloud 10 prior to version 10.15.3, an attacker with administrative privileges can exploit a path traversal vulnerability in the system to execute arbitrary code. Upgrade ownCloud 10 to version 10.15.3 or later to receive a patch.
CVE-2025-53828 High · 8.5 CWE-918 Jul 6, 2026
SharePoint for ownCloud 10 is vulnerable to Server-Side Request Forgery (SSRF)
SharePoint for ownCloud is an application for using SharePoint with the file storage, synchronization, and sharing application ownCloud Classic. In SharePoint for ownCloud prior to version 0.4.1, which corresponds to ownCloud 10 prior to 10.15.3, an attacker with administrative privileges can use a SSRF vulnerability in the SharePoint app to execute arbitrary code on the system. Upgrade ownCloud 10 to version 10.15.3 or later to receive SharePoint for ownCloud 0.4.1, the fixed version.
CVE-2025-53827 Critical · 9.1 CWE-749 Jul 6, 2026
ownCloud Core: Updater has an exposed dangerous method or function
ownCloud Core is the server-side component of the file storage, synchronization, and sharing application ownCloud Classic. In versions prior to 10.15.3, the Updater on ownCloud 10 before 10.15.3 has an exposed dangerous method or function. Attackers with administrative privileges may leverage functionality to execute arbitrary code. This issue has been fixed in version 10.15.3.
CVE-2019-25337 Critical · 9.8 CWE-203 Feb 12, 2026
OwnCloud 8.1.8 - Username Disclosure
OwnCloud 8.1.8 contains a username enumeration vulnerability that allows remote attackers to discover user accounts by manipulating the share.php endpoint. Attackers can send crafted GET requests to /index.php/core/ajax/share.php with a wildcard search parameter to retrieve comprehensive user information.
CVE-2025-59716 Medium · 5.3 Public exploit CWE-200 Nov 5, 2025
Exposure of Sensitive Information in Owncloud Guests
ownCloud Guests before 0.12.5 allows unauthenticated user enumeration via the /apps/guests/register/{email}/{token} endpoint. Because of insufficient validation of the supplied token in showPasswordForm, the server responds differently when an e-mail address corresponds to a valid pending guest user rather than a non-existent user.
CVE-2023-49103 High · 7.5 KEV Urgent · 79 Public exploit CWE-200 Nov 21, 2023
ownCloud graphapi Information Disclosure Vulnerability
An issue was discovered in ownCloud owncloud/graphapi 0.2.x before 0.2.1 and 0.3.x before 0.3.1. The graphapi app relies on a third-party GetPhpInfo.php library that provides a URL. When this URL is accessed, it reveals the configuration details of the PHP environment (phpinfo). This information includes all the environment variables of the webserver. In containerized deployments, these environment variables may include sensitive data such as the ownCloud admin password, mail server credentials, and license key. Simply disabling the graphapi app does not eliminate the vulnerability. Additionally, phpinfo exposes various other potentially sensitive configuration details that could be exploited by an attacker to gather information about the system. Therefore, even if ownCloud is not running in a containerized environment, this vulnerability should still be a cause for concern. Note that Docker containers from before February 2023 are not vulnerable to the credential disclosure.
CVE-2023-49105 Critical · 9.8 KEV High · 69 Public exploit CWE-287 Nov 21, 2023
ownCloud Improper Authentication Vulnerability
An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. This occurs because pre-signed URLs can be accepted even when no signing-key is configured for the owner of the files. The earliest affected version is 10.6.0.