cvedb.io
CVE-2026-28348
MEDIUM · CVSS 6.1
EPSS exploitation probability: 0%
Published 2026-03-05T20:16:16.180 · Last modified 2026-06-17T10:28:27.647

Summary

lxml_html_clean is a project for HTML cleaning functionalities copied from `lxml.html.clean`. Prior to version 0.4.4, the _has_sneaky_javascript() method strips backslashes before checking for dangerous CSS keywords. This causes CSS Unicode escape sequences to bypass the @import and expression() filters, allowing external CSS loading or XSS in older browsers. This issue has been patched in version 0.4.4.

Affected products

fedoralovespython — lxml_html_clean

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.