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Threat Entry
Updated 2026-06-17
H5p Css Editor - Cross-Site Scripting (XSS) (CVE-2021-39318)
The H5P CSS Editor WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the h5p-css-file parameter found in the ~/h5p-css-editor.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.0.
PLUGIN
H5p Css Editor
CVE-2021-39318
Risk Score