CVE-2014-0166

The wp_validate_auth_cookie function in wp-includes/pluggable.php in WordPress before 3.7.2 and 3.8.x before 3.8.2 does not properly determine the validity of authentication cookies, which makes it easier for remote attackers to obtain access via a forged cookie.

Published: 2014-04-10 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-0166 is rated Moderate Risk (53.7/100): CVSS Medium severity, with high exploitation likelihood (EPSS 8.93%, 95th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. 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-2014-0166

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 35.31% 8.93% -26.38%
2 2026-05-30 37.84% 35.31% -2.53%
3 2026-05-10 — 37.84% —

Full EPSS history (46 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-0166

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/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:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2014-0166

OS Trackers for CVE-2014-0166

vendor priority summary link
debian not yet assigned CVE-2014-0166 not yet assigned priority: Debian including 1 source packages (wordpress), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-0166
ubuntu medium CVE-2014-0166 medium priority: Ubuntu including 1 source packages (wordpress), 12 status rows across 12 suites (lucid, precise, quantal, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 6, ignored 4, DNE 1, released 1. https://ubuntu.com/security/CVE-2014-0166

Affected software / configurations for CVE-2014-0166

Vendor Product Version Raw CPE
wordpress wordpress <= 3.7.1 cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
wordpress wordpress 0.71 cpe:2.3:a:wordpress:wordpress:0.71:*:*:*:*:*:*:*
wordpress wordpress 1.0 cpe:2.3:a:wordpress:wordpress:1.0:*:*:*:*:*:*:*
wordpress wordpress 1.0.1 cpe:2.3:a:wordpress:wordpress:1.0.1:*:*:*:*:*:*:*
wordpress wordpress 1.0.2 cpe:2.3:a:wordpress:wordpress:1.0.2:*:*:*:*:*:*:*
wordpress wordpress 1.1.1 cpe:2.3:a:wordpress:wordpress:1.1.1:*:*:*:*:*:*:*
wordpress wordpress 1.2 cpe:2.3:a:wordpress:wordpress:1.2:*:*:*:*:*:*:*
wordpress wordpress 1.2.1 cpe:2.3:a:wordpress:wordpress:1.2.1:*:*:*:*:*:*:*
wordpress wordpress 1.2.2 cpe:2.3:a:wordpress:wordpress:1.2.2:*:*:*:*:*:*:*
wordpress wordpress 1.2.3 cpe:2.3:a:wordpress:wordpress:1.2.3:*:*:*:*:*:*:*
wordpress wordpress 1.2.4 cpe:2.3:a:wordpress:wordpress:1.2.4:*:*:*:*:*:*:*
wordpress wordpress 1.2.5 cpe:2.3:a:wordpress:wordpress:1.2.5:*:*:*:*:*:*:*
wordpress wordpress 1.2.5 cpe:2.3:a:wordpress:wordpress:1.2.5:a:*:*:*:*:*:*
wordpress wordpress 1.3 cpe:2.3:a:wordpress:wordpress:1.3:*:*:*:*:*:*:*
wordpress wordpress 1.3.2 cpe:2.3:a:wordpress:wordpress:1.3.2:*:*:*:*:*:*:*
wordpress wordpress 1.3.3 cpe:2.3:a:wordpress:wordpress:1.3.3:*:*:*:*:*:*:*
wordpress wordpress 1.5 cpe:2.3:a:wordpress:wordpress:1.5:*:*:*:*:*:*:*
wordpress wordpress 1.5.1 cpe:2.3:a:wordpress:wordpress:1.5.1:*:*:*:*:*:*:*
wordpress wordpress 1.5.1.1 cpe:2.3:a:wordpress:wordpress:1.5.1.1:*:*:*:*:*:*:*
wordpress wordpress 1.5.1.2 cpe:2.3:a:wordpress:wordpress:1.5.1.2:*:*:*:*:*:*:*
wordpress wordpress 1.5.1.3 cpe:2.3:a:wordpress:wordpress:1.5.1.3:*:*:*:*:*:*:*
wordpress wordpress 1.5.2 cpe:2.3:a:wordpress:wordpress:1.5.2:*:*:*:*:*:*:*
wordpress wordpress 1.6.2 cpe:2.3:a:wordpress:wordpress:1.6.2:*:*:*:*:*:*:*
wordpress wordpress 2.0 cpe:2.3:a:wordpress:wordpress:2.0:*:*:*:*:*:*:*
wordpress wordpress 2.0.1 cpe:2.3:a:wordpress:wordpress:2.0.1:*:*:*:*:*:*:*
wordpress wordpress 2.0.2 cpe:2.3:a:wordpress:wordpress:2.0.2:*:*:*:*:*:*:*
wordpress wordpress 2.0.4 cpe:2.3:a:wordpress:wordpress:2.0.4:*:*:*:*:*:*:*
wordpress wordpress 2.0.5 cpe:2.3:a:wordpress:wordpress:2.0.5:*:*:*:*:*:*:*
wordpress wordpress 2.0.6 cpe:2.3:a:wordpress:wordpress:2.0.6:*:*:*:*:*:*:*
wordpress wordpress 2.0.7 cpe:2.3:a:wordpress:wordpress:2.0.7:*:*:*:*:*:*:*
wordpress wordpress 2.0.8 cpe:2.3:a:wordpress:wordpress:2.0.8:*:*:*:*:*:*:*
wordpress wordpress 2.0.9 cpe:2.3:a:wordpress:wordpress:2.0.9:*:*:*:*:*:*:*
wordpress wordpress 2.0.10 cpe:2.3:a:wordpress:wordpress:2.0.10:*:*:*:*:*:*:*
wordpress wordpress 2.0.11 cpe:2.3:a:wordpress:wordpress:2.0.11:*:*:*:*:*:*:*
wordpress wordpress 2.1 cpe:2.3:a:wordpress:wordpress:2.1:*:*:*:*:*:*:*
wordpress wordpress 2.1.1 cpe:2.3:a:wordpress:wordpress:2.1.1:*:*:*:*:*:*:*
wordpress wordpress 2.1.2 cpe:2.3:a:wordpress:wordpress:2.1.2:*:*:*:*:*:*:*
wordpress wordpress 2.1.3 cpe:2.3:a:wordpress:wordpress:2.1.3:*:*:*:*:*:*:*
wordpress wordpress 2.2 cpe:2.3:a:wordpress:wordpress:2.2:*:*:*:*:*:*:*
wordpress wordpress 2.2.1 cpe:2.3:a:wordpress:wordpress:2.2.1:*:*:*:*:*:*:*
wordpress wordpress 2.2.2 cpe:2.3:a:wordpress:wordpress:2.2.2:*:*:*:*:*:*:*
wordpress wordpress 2.2.3 cpe:2.3:a:wordpress:wordpress:2.2.3:*:*:*:*:*:*:*
wordpress wordpress 2.3 cpe:2.3:a:wordpress:wordpress:2.3:*:*:*:*:*:*:*
wordpress wordpress 2.3.1 cpe:2.3:a:wordpress:wordpress:2.3.1:*:*:*:*:*:*:*
wordpress wordpress 2.3.2 cpe:2.3:a:wordpress:wordpress:2.3.2:*:*:*:*:*:*:*
wordpress wordpress 2.3.3 cpe:2.3:a:wordpress:wordpress:2.3.3:*:*:*:*:*:*:*
wordpress wordpress 2.5 cpe:2.3:a:wordpress:wordpress:2.5:*:*:*:*:*:*:*
wordpress wordpress 2.5.1 cpe:2.3:a:wordpress:wordpress:2.5.1:*:*:*:*:*:*:*
wordpress wordpress 2.6 cpe:2.3:a:wordpress:wordpress:2.6:*:*:*:*:*:*:*
wordpress wordpress 2.6.1 cpe:2.3:a:wordpress:wordpress:2.6.1:*:*:*:*:*:*:*
wordpress wordpress 2.6.2 cpe:2.3:a:wordpress:wordpress:2.6.2:*:*:*:*:*:*:*
wordpress wordpress 2.6.3 cpe:2.3:a:wordpress:wordpress:2.6.3:*:*:*:*:*:*:*
wordpress wordpress 2.6.5 cpe:2.3:a:wordpress:wordpress:2.6.5:*:*:*:*:*:*:*
wordpress wordpress 2.7 cpe:2.3:a:wordpress:wordpress:2.7:*:*:*:*:*:*:*
wordpress wordpress 2.7.1 cpe:2.3:a:wordpress:wordpress:2.7.1:*:*:*:*:*:*:*
wordpress wordpress 2.8 cpe:2.3:a:wordpress:wordpress:2.8:*:*:*:*:*:*:*
wordpress wordpress 2.8.1 cpe:2.3:a:wordpress:wordpress:2.8.1:*:*:*:*:*:*:*
wordpress wordpress 2.8.2 cpe:2.3:a:wordpress:wordpress:2.8.2:*:*:*:*:*:*:*
wordpress wordpress 2.8.3 cpe:2.3:a:wordpress:wordpress:2.8.3:*:*:*:*:*:*:*
wordpress wordpress 2.8.4 cpe:2.3:a:wordpress:wordpress:2.8.4:*:*:*:*:*:*:*
wordpress wordpress 2.8.4 cpe:2.3:a:wordpress:wordpress:2.8.4:a:*:*:*:*:*:*
wordpress wordpress 2.8.5 cpe:2.3:a:wordpress:wordpress:2.8.5:*:*:*:*:*:*:*
wordpress wordpress 2.8.5.1 cpe:2.3:a:wordpress:wordpress:2.8.5.1:*:*:*:*:*:*:*
wordpress wordpress 2.8.5.2 cpe:2.3:a:wordpress:wordpress:2.8.5.2:*:*:*:*:*:*:*
wordpress wordpress 2.8.6 cpe:2.3:a:wordpress:wordpress:2.8.6:*:*:*:*:*:*:*
wordpress wordpress 2.9 cpe:2.3:a:wordpress:wordpress:2.9:*:*:*:*:*:*:*
wordpress wordpress 2.9.1 cpe:2.3:a:wordpress:wordpress:2.9.1:*:*:*:*:*:*:*
wordpress wordpress 2.9.1.1 cpe:2.3:a:wordpress:wordpress:2.9.1.1:*:*:*:*:*:*:*
wordpress wordpress 2.9.2 cpe:2.3:a:wordpress:wordpress:2.9.2:*:*:*:*:*:*:*
wordpress wordpress 3.0 cpe:2.3:a:wordpress:wordpress:3.0:*:*:*:*:*:*:*
wordpress wordpress 3.0.1 cpe:2.3:a:wordpress:wordpress:3.0.1:*:*:*:*:*:*:*
wordpress wordpress 3.0.2 cpe:2.3:a:wordpress:wordpress:3.0.2:*:*:*:*:*:*:*
wordpress wordpress 3.0.3 cpe:2.3:a:wordpress:wordpress:3.0.3:*:*:*:*:*:*:*
wordpress wordpress 3.0.4 cpe:2.3:a:wordpress:wordpress:3.0.4:*:*:*:*:*:*:*
wordpress wordpress 3.0.5 cpe:2.3:a:wordpress:wordpress:3.0.5:*:*:*:*:*:*:*
wordpress wordpress 3.0.6 cpe:2.3:a:wordpress:wordpress:3.0.6:*:*:*:*:*:*:*
wordpress wordpress 3.1 cpe:2.3:a:wordpress:wordpress:3.1:*:*:*:*:*:*:*
wordpress wordpress 3.1.1 cpe:2.3:a:wordpress:wordpress:3.1.1:*:*:*:*:*:*:*
wordpress wordpress 3.1.2 cpe:2.3:a:wordpress:wordpress:3.1.2:*:*:*:*:*:*:*
wordpress wordpress 3.1.3 cpe:2.3:a:wordpress:wordpress:3.1.3:*:*:*:*:*:*:*

References for CVE-2014-0166

cvelogic Threat Intelligence