CyberSecBulletin

ownCloud vulnerabilities

We track 7 vulnerabilities in ownCloud products across 7 products. 7 are rated high or critical, and 2 have been exploited in real attacks. The most recent was published on July 6, 2026.

7vulnerabilities
3critical
4high
2exploited
8.6average CVSS score

Latest ownCloud vulnerabilities

  • 8.2 High severity

    DrawIO for ownCloud: Improper Neutralization of Input During Web Page Generation

    CVE-2025-53831ownCloud

    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 ac

  • 9.1 Critical severity

    Anti-Virus for ownCloud: Server-Side Request Forgery

    CVE-2025-53830ownCloud

    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 own

  • 8.0 High severity

    ownCloud 10: Relative Path Traversal

    CVE-2025-53829ownCloud

    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

  • 8.5 High severity

    SharePoint: Server-Side Request Forgery

    CVE-2025-53828ownCloud

    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 w

  • 9.1 Critical severity

    ownCloud Core: Exposed Dangerous Method or Function

    CVE-2025-53827ownCloud

    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 admin

  • 9.8 Critical severity

    ownCloud Improper Authentication Exploited

    CVE-2023-49105ownCloudEPSS 43.2%

    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

  • 7.5 High severity

    ownCloud graphapi Information Disclosure Exploited

    CVE-2023-49103ownCloudEPSS 77.8%

    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 env