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CVE-2020-11025: In affected versions of WordPress, a cross-site scripting (XSS) vulnerability in the navigation section of Customizer allows JavaScript code to be executed. Exploitation requires an authenticated user

medium Affects WordPress core. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

In affected versions of WordPress, a cross-site scripting (XSS) vulnerability in the navigation section of Customizer allows JavaScript code to be executed. Exploitation requires an authenticated user

Package
WordPress core WordPress
Affected versions
>=4.7 and <5.4.1
Fixed in
5.4.1
Severity
medium  CVSS 5.8
Exploitation
not on CISA KEV · EPSS 2% (74.6th percentile)
Published
2020-04-30
Source
nvd

References

CWE-79
NVD recordWordPress core advisories

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# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

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

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