How severe is CVE-2015-4717?

CVE-2015-4717 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2015-4717 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-4717?

CVE-2015-4717 primarily affects Owncloud. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-4717?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-4717 published?

CVE-2015-4717 was published on 2015-10-21 and last updated on 2026-06-17.

CVE-2015-4717

CVE-2015-4717 is a high-severity vulnerability in Owncloud with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Owncloud
Published: 2015-10-21
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2015-4717?: CVE-2015-4717 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2015-4717 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-4717?: CVE-2015-4717 primarily affects Owncloud. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-4717?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-4717 published?: CVE-2015-4717 was published on 2015-10-21 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.4:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.5:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:8.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:8.0.3:*:*:*:*:*:*:*

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CVE-2015-4716 — Critical (CVSS 10.0): Directory traversal vulnerability in the routing component in ownCloud Server before 7.0.6 and 8.0.x before 8.0.4, when…
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Other CWE-399 (Resource Management Errors) vulnerabilities

CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →