CVE-2021-24307: The All in One SEO – Best WordPress SEO Plugin – Easily Improve Your SEO Rankings before 4.1.0.2 enables authenticated users with "aioseo_tools_settings" privilege (most of the time admin) to execute

high Affects all-in-one-seo (WordPress plugin). Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

The All in One SEO – Best WordPress SEO Plugin – Easily Improve Your SEO Rankings before 4.1.0.2 enables authenticated users with "aioseo_tools_settings" privilege (most of the time admin) to execute

Package
all-in-one-seo (WordPress plugin) WordPress
Affected versions
<4.1.0.2
Fixed in
4.1.0.2
Severity
high  CVSS 8.8
Exploitation
not on CISA KEV · EPSS 53% (99.0th percentile)
Published
2021-05-24
Source
nvd

References

CWE-502
NVD recordall-in-one-seo (WordPress plugin) 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.

# 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.

Install docs   How findings are ranked

Related advisories