phpwarden
FeaturesComparePricingAdvisoriesBlogDocsChangelogLog in
Log inStart free

CVE-2014-5203: wp-includes/class-wp-customize-widgets.php in the widget implementation in WordPress 3.9.x before 3.9.2 might allow remote attackers to execute arbitrary code via crafted serialized data.

high Affects WordPress core. Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

wp-includes/class-wp-customize-widgets.php in the widget implementation in WordPress 3.9.x before 3.9.2 might allow remote attackers to execute arbitrary code via crafted serialized data.

Package
WordPress core WordPress
Affected versions
=3.9.0 or =3.9.1
Fixed in
no fix recorded
Severity
high  CVSS 7.5
Exploitation
not on CISA KEV · EPSS 4% (90.2th percentile)
Published
2014-08-18
Source
nvd

References

NVD recordWordPress core advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs   How findings are ranked

Related advisories