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CVE-2021-24789: The Flat Preloader WordPress plugin before 1.5.5 does not escape some of its settings when outputting them in attribute in the frontend, which could allow high privilege users to perform Cross-Site Sc

medium Affects flat-preloader (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

The Flat Preloader WordPress plugin before 1.5.5 does not escape some of its settings when outputting them in attribute in the frontend, which could allow high privilege users to perform Cross-Site Sc

Package
flat-preloader (WordPress plugin) WordPress
Affected versions
<1.5.5
Fixed in
1.5.5
Severity
medium  CVSS 4.8
Exploitation
not on CISA KEV · EPSS 1% (50.7th percentile)
Published
2021-11-01
Source
nvd

References

CWE-79
NVD recordflat-preloader (WordPress plugin) advisories

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# then
vendor/bin/phpwarden wordpress /var/www/html

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