How severe is CVE-2014-0166?

CVE-2014-0166 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2014-0166 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-0166?

CVE-2014-0166 primarily affects Wordpress. In total, 98 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-0166?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-0166 published?

CVE-2014-0166 was published on 2014-04-10 and last updated on 2026-06-17.

CVE-2014-0166

CVE-2014-0166 is a medium-severity vulnerability in Wordpress with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Wordpress
Published: 2014-04-10
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2014-0166?: CVE-2014-0166 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2014-0166 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-0166?: CVE-2014-0166 primarily affects Wordpress. In total, 98 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-0166?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-0166 published?: CVE-2014-0166 was published on 2014-04-10 and last updated on 2026-06-17.

References

Affected products (98)

cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:0.71:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.0:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.2.5:a:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5.1.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5.1.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5.1.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:1.6.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.7:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.8:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.9:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.10:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.0.11:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.1.3:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.2:*:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:2.2.1:*:*:*:*:*:*:*

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