CVE-2013-6858

Multiple cross-site scripting (XSS) vulnerabilities in OpenStack Dashboard (Horizon) 2013.2 and earlier allow local users to inject arbitrary web script or HTML via an instance name to (1) "Volumes" or (2) "Network Topology" page.

Published: 2013-11-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2013-6858 is rated Moderate Risk (44.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.73%). Core evidence: EPSS rose +1.22% over the last day, indicating growing attacker interest. Mandatory action: 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-2013-6858

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 0.51% 1.73% +1.22%
2 2026-02-13 0.76% 0.51% -0.24%
3 2025-03-30 0.76%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-6858

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/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:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2013-6858

OS Trackers for CVE-2013-6858

vendor priority summary link
debian not yet assigned CVE-2013-6858 not yet assigned priority: Debian including 1 source packages (horizon), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-6858
redhat medium https://access.redhat.com/security/cve/CVE-2013-6858
ubuntu medium CVE-2013-6858 medium priority: Ubuntu including 1 source packages (horizon), 6 status rows across 6 suites (lucid, precise, quantal, raring, saucy, upstream): released 3, DNE 1, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2013-6858

Affected software / configurations for CVE-2013-6858

Vendor Product Version Raw CPE
openstack horizon >= 2013.1, <= 2013.2 cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*
opensuse opensuse 13.1 cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
canonical ubuntu_linux 12.10 cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
canonical ubuntu_linux 13.04 cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:*
canonical ubuntu_linux 13.10 cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*

References for CVE-2013-6858

URL Tags
http://lists.opensuse.org/opensuse-updates/2015-01/msg00040.html Mailing List Third Party Advisory
http://secunia.com/advisories/55770 Third Party Advisory
http://secunia.com/advisories/56117 Third Party Advisory
http://www.securityfocus.com/bid/63787 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2062-1 Third Party Advisory
https://bugs.launchpad.net/horizon/+bug/1247675 Issue Tracking Patch Third Party Advisory
cvelogic Threat Intelligence