CVE-2015-5953

Cross-site scripting (XSS) vulnerability in the activity application in ownCloud Server before 7.0.5 and 8.0.x before 8.0.4 allows remote authenticated users to inject arbitrary web script or HTML via a " (double quote) character in a filename in a shared folder.

Published: 2015-10-21 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-5953 is rated Low Risk (33/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.83%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2015-5953

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 0.18% 0.83% +0.64%
2 2025-03-17 0.07% 0.18% +0.12%
3 2023-03-07 0.07%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-5953

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
6.8 2.9 [email protected]

Weakness enumeration for CVE-2015-5953

OS Trackers for CVE-2015-5953

vendor priority summary link
ubuntu medium CVE-2015-5953 medium priority: Ubuntu including 1 source packages (owncloud), 4 status rows across 4 suites (precise, trusty, upstream, vivid): DNE 2, not-affected 1, released 1. https://ubuntu.com/security/CVE-2015-5953

Affected software / configurations for CVE-2015-5953

Vendor Product Version Raw CPE
owncloud owncloud <= 7.0.4 cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
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-2015-5953

cvelogic Threat Intelligence