CVE-2013-1665

The XML libraries for Python 3.4, 3.3, 3.2, 3.1, 2.7, and 2.6, as used in OpenStack Keystone Essex and Folsom, Django, and possibly other products allow remote attackers to read arbitrary files via an XML external entity declaration in conjunction with an entity reference, aka an XML External Entity (XXE) attack.

Published: 2013-04-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2013-1665 is rated Moderate Risk (53.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 4.59%, 90th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +1.60% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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-2013-1665

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 3.00% 4.59% +1.60%
2 2026-01-21 2.31% 3.00% +0.68%
3 2025-12-14 2.31%

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-1665

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N 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:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2013-1665

GitHub Security Advisory for CVE-2013-1665

GHSA-x64m-686f-fmm3 · Severity: medium · Ecosystem: pip — XML External Entity (XXE) in Django

OS Trackers for CVE-2013-1665

vendor priority summary link
debian not yet assigned CVE-2013-1665 not yet assigned priority: Debian including 2 source packages (keystone, python-django), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2013-1665
redhat medium https://access.redhat.com/security/cve/CVE-2013-1665
ubuntu medium CVE-2013-1665 medium priority: Ubuntu including 2 source packages (keystone, python-django), 12 status rows across 6 suites (hardy, lucid, oneiric, precise, quantal, upstream): released 7, DNE 2, ignored 2, pending 1. https://ubuntu.com/security/CVE-2013-1665

Affected software / configurations for CVE-2013-1665

Vendor Product Version Raw CPE
openstack folsom cpe:2.3:a:openstack:folsom:-:*:*:*:*:*:*:*
openstack keystone_essex cpe:2.3:a:openstack:keystone_essex:-:*:*:*:*:*:*:*

References for CVE-2013-1665

cvelogic Threat Intelligence