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CVE-2023-1339: The RapidLoad Power-Up for Autoptimize plugin for WordPress is vulnerable to unauthorized settings update due to a missing capability check on the uucss_update_rule function in versions up to, and inc

medium Affects unusedcss (WordPress plugin). Feed 2026.10.29.3, updated 2026-10-29; published ; advisory modified .

The RapidLoad Power-Up for Autoptimize plugin for WordPress is vulnerable to unauthorized settings update due to a missing capability check on the uucss_update_rule function in versions up to, and inc

Package
unusedcss (WordPress plugin) WordPress
Affected versions
<=1.7.1
Fixed in
no fix recorded
Severity
medium  CVSS 4.3
Exploitation
not on CISA KEV · EPSS 1% (45.8th percentile)
Published
2023-03-10
Source
nvd

References

CWE-862
NVD recordunusedcss (WordPress plugin) 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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