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CVE-2021-24921: The Advanced Database Cleaner WordPress plugin before 3.0.4 does not sanitise and escape $_GET keys and values before outputting them back in attributes, leading to Reflected Cross-Site Scripting issu

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

The Advanced Database Cleaner WordPress plugin before 3.0.4 does not sanitise and escape $_GET keys and values before outputting them back in attributes, leading to Reflected Cross-Site Scripting issu

Package
advanced-database-cleaner (WordPress plugin) WordPress
Affected versions
<3.0.4
Fixed in
3.0.4
Severity
medium  CVSS 6.1
Exploitation
not on CISA KEV · EPSS 1% (56.5th percentile)
Published
2022-02-21
Source
nvd

References

CWE-79
NVD recordadvanced-database-cleaner (WordPress plugin) advisories

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# PHP projects (recommended)
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# 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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