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-2025-53829
This high-severity CVE scores 8.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 74% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.0
- EG Score
- 8.0(medium)
- EPSS
- 25.5%
- KEV
- Not listed
Published
July 6, 2026
Last Modified
July 8, 2026
Advisory Details (1)
Auto-updated Jul 6, 2026[OC10] ownCloud 10 before 10.15.3 is vulnerable to Relative Path Traversal · Advisory · owncloud/security-advisories · GitHub
https://github.com/owncloud/security-advisories/security/advisories/GHSA-4439-4wxm-c9pxWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 20× in last 7d / 20× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-12 07:14 UTCEG score recompute
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 19:56 UTCEG score recompute
- 2026-07-11 08:39 UTCEG score recompute
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-10 21:22 UTCEG score recompute
- 2026-07-10 10:04 UTCEG score recompute
- 2026-07-09 22:46 UTCEG score recompute
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-09 11:29 UTCEG score recompute
- 2026-07-09 00:12 UTCEG score recompute
- 2026-07-08 15:15 UTCEPSS rescore
- 2026-07-08 12:55 UTCEG score recompute
- 2026-07-08 01:35 UTCEG score recompute
- 2026-07-07 14:18 UTCEG score recompute
- 2026-07-07 13:45 UTCEPSS rescore
- 2026-07-07 02:54 UTCEG score recompute
- 2026-07-06 15:36 UTCEG score recompute
- 2026-07-06 15:36 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2025-53829?
When was CVE-2025-53829 disclosed?
Is CVE-2025-53829 actively exploited?
What is the CVSS score of CVE-2025-53829?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-53829
Is Your Infrastructure Affected by CVE-2025-53829?
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