CVE-2025-53829 ownCloud 10 is vulnerable to Relative Path Traversal
Administrators can exploit a path traversal flaw in ownCloud 10 to execute arbitrary code on the server.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-53829?
CVE-2025-53829 is a high-severity path traversal vulnerability in ownCloud 10, published on 6 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-23
Which versions are affected by CVE-2025-53829?
How do I fix CVE-2025-53829?
No fix has been published for CVE-2025-53829 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-53829 being exploited?
There is no known exploitation of CVE-2025-53829 in the wild and no public exploit code.