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CVE-2021-24350: The Visitors WordPress plugin through 0.3 is affected by an Unauthenticated Stored Cross-Site Scripting (XSS) vulnerability. The plugin would display the user's user agent string without validation or

medium Affects visitors-online (WordPress plugin). Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

The Visitors WordPress plugin through 0.3 is affected by an Unauthenticated Stored Cross-Site Scripting (XSS) vulnerability. The plugin would display the user's user agent string without validation or

Package
visitors-online (WordPress plugin) WordPress
Affected versions
<=0.3
Fixed in
no fix recorded
Severity
medium  CVSS 6.1
Exploitation
not on CISA KEV · EPSS 1% (70.4th percentile)
Published
2021-06-14
Source
nvd

References

CWE-79
NVD recordvisitors-online (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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