CVE-2015-6500

Directory traversal vulnerability in ownCloud Server before 8.0.6 and 8.1.x before 8.1.1 allows...

7.5 High

Directory traversal vulnerability in ownCloud Server before 8.0.6 and 8.1.x before 8.1.1 allows remote authenticated users to list directory contents and possibly cause a denial of service (CPU consumption) via a .. (dot dot) in the dir parameter to index.php/apps/files/ajax/scan.php.

Exploit likelihood

2.63%Up 1.6 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2015-6500
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:S/C:P/I:N/A:C
Weakness: CWE-22, CWE-399
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-6500
Updated: 2026-11-02

EUVDEUVD-2015-6440 No score

Record: EUVD-2015-6440
Updated: 2026-11-03

GitHub AdvisoriesGHSA-pmhq-22rw-g7qj No score

Directory traversal vulnerability in ownCloud Server before 8.0.6 and 8.1.x before 8.1.1 allows...

Record: GHSA-pmhq-22rw-g7qj
Weakness: CWE-22
Updated: 2026-11-02

OSVMGASA-2015-0378 No score

Updated owncloud packages fix security vulnerabilities

Updated owncloud package fixes security vulnerabilities:

In ownCloud before 8.0.6, due to an incorrect usage of an ownCloud internal file system function the passed path to the file scanner was resolved relatively. An authenticated adversary may thus be able to get a listing of directories (but not the containing files) existing on the filesystem. However, it is not possible to access any of these files (CVE-2015-6500).

In ownCloud before 8.0.6, due to not properly checking the ownership of an calendar, an authenticated attacker is able to download calendars of other users via the "calid" GET parameter to export.php in /apps/calendar/ (CVE-2015-6670).

The owncloud package has been updated to version 8.0.8, which fixes these issues, as well as other bugs and other not-yet-disclosed security issues.

Record: MGASA-2015-0378
Updated: 2026-11-02

Affected products

owncloud server

Affected packages

Affected packages
Package	Affected	Fixed
`owncloud` Debian:8 From an advisory covering 8 CVEs	before 7.0.4+dfsg-4~deb8u3, plus listed versions 7.0.4+dfsg-27.0.4+dfsg-37.0.4+dfsg-4~deb8u17.0.4+dfsg-4~deb8u2	7.0.4+dfsg-4~deb8u3
`owncloud` Mageia:5 From an advisory covering 2 CVEs	before 8.0.8-1.mga5	8.0.8-1.mga5

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-6500 is a high vulnerability (CVSS 7.5) in Owncloud Server, published September 18, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.63%, the 85th percentile. No source names a fixed version.