CVE-2025-53829
HighCVSS 8.0Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
In ownCloud 10 prior to version 10.15.3, a path traversal vulnerability allows an attacker with administrative privileges to execute arbitrary code. The issue is fixed in version 10.15.3.
Risk Assessment
An attacker with admin access can take over the ownCloud server, leading to full compromise of data and the system.
Recommendation
Immediately upgrade ownCloud 10 to version 10.15.3 or later.
Other vulnerabilities in ownCloud
See all- CVE-2023-49105CriticalActively exploited
In ownCloud core before version 10.13.1, an attacker can access, modify, or delete any file without authentication if the victim's username 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 file owner. The earliest affected version is 10.6.0.
- CVE-2025-53828High
In SharePoint for ownCloud prior to version 0.4.1 (corresponding to ownCloud 10 before 10.15.3), an SSRF vulnerability allows an attacker with administrative privileges to execute arbitrary code on the system.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS