CVE-2015-4717

The filename sanitization component in ownCloud Server before 6.0.8, 7.0.x before 7.0.6, and 8.0.x before 8.0.4 does not properly handle $_GET parameters cast by PHP to an array, which allows remote attackers to cause a denial of service (infinite loop and log file consumption) via crafted endpoint file names.

Published: 2015-10-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-4717 is rated Moderate Risk (63/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.83%). EPSS rose +2.14% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-4717

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.69% 2.83% +2.14%
2 2025-06-24 0.86% 0.69% -0.17%
3 2025-03-30 — 0.86% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-4717

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2015-4717

OS Trackers for CVE-2015-4717

vendor priority summary link
ubuntu medium CVE-2015-4717 medium priority: Ubuntu including 1 source packages (owncloud), 5 status rows across 5 suites (precise, trusty, upstream, vivid, wily): DNE 3, not-affected 1, released 1. https://ubuntu.com/security/CVE-2015-4717

Affected software / configurations for CVE-2015-4717

Vendor Product Version Raw CPE
owncloud owncloud <= 6.0.7 cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
owncloud owncloud_server 7.0.0 cpe:2.3:a:owncloud:owncloud_server:7.0.0:*:*:*:*:*:*:*
owncloud owncloud_server 7.0.1 cpe:2.3:a:owncloud:owncloud_server:7.0.1:*:*:*:*:*:*:*
owncloud owncloud_server 7.0.2 cpe:2.3:a:owncloud:owncloud_server:7.0.2:*:*:*:*:*:*:*
owncloud owncloud_server 7.0.3 cpe:2.3:a:owncloud:owncloud_server:7.0.3:*:*:*:*:*:*:*
owncloud owncloud_server 7.0.4 cpe:2.3:a:owncloud:owncloud_server:7.0.4:*:*:*:*:*:*:*
owncloud owncloud_server 7.0.5 cpe:2.3:a:owncloud:owncloud_server:7.0.5:*:*:*:*:*:*:*
owncloud owncloud_server 8.0.0 cpe:2.3:a:owncloud:owncloud_server:8.0.0:*:*:*:*:*:*:*
owncloud owncloud_server 8.0.2 cpe:2.3:a:owncloud:owncloud_server:8.0.2:*:*:*:*:*:*:*
owncloud owncloud_server 8.0.3 cpe:2.3:a:owncloud:owncloud_server:8.0.3:*:*:*:*:*:*:*

References for CVE-2015-4717

cvelogic Threat Intelligence