CVE-2026-28348
6.1 · MEDIUMOverview
CVE-2026-28348 is a medium-severity vulnerability affecting fedoralovespython lxml_html_clean. It was published on March 5, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from fedoralovespython. Update lxml_html_clean to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| fedoralovespython | lxml_html_clean | >= 0, < 0.4.4 | Affected |
Frequently Asked Questions
What is CVE-2026-28348?
CVE-2026-28348 is a medium-severity vulnerability affecting fedoralovespython lxml_html_clean. It was published on March 5, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
How severe is CVE-2026-28348?
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-28348?
Check the references section for vendor advisories and patches from fedoralovespython. Update lxml_html_clean to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-28348?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-28348 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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