Vulnerability · CVE-2026-28350
lxml_html_clean is a project for HTML cleaning functionalities copied from .
Published Mar 5, 2026 · corrected/updated Jun 17, 2026 · fedoralovespython lxml html clean · evidence confidence high
lxml_html_clean is a project for HTML cleaning functionalities copied from . Prior to version 0.4.4, the tag passes through the default Cleaner configuration. While page_structure=True removes html, head, and title tags, there is no specific handling for , allowing an attacker to inject it and hijack relative links on the page. This issue has been patched in version 0.4.4.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-28350 is a medium public vulnerability record for fedoralovespython lxml html clean. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether fedoralovespython lxml html clean is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: fedoralovespython/lxml html clean. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 6.1, EPSS 0.3%. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-116. Sources contributing to this record: cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Mar 5, 2026 · NIST NVD
Detected
lxml_html_clean is a project for HTML cleaning functionalities copied from . Prior to version 0.4.4, the tag passes through the default Cleaner configuration. While page_structure=True removes html, head, and title tags, there is no specific handling for , allowing an attacker to inject it and hijack relative links on the page. This issue has been patched in version 0.4.4.
Jun 17, 2026 · NIST NVD
Updated
lxml_html_clean is a project for HTML cleaning functionalities copied from . Prior to version 0.4.4, the tag passes through the default Cleaner configuration. While page_structure=True removes html, head, and title tags, there is no specific handling for , allowing an attacker to inject it and hijack relative links on the page. This issue has been patched in version 0.4.4.
Affected
- cpe fedoralovespython/lxml html cleanversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-28350
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-28350
30-day exploitation probability 0.3%
first.org - NIST NVDVulnerability recordCVE-2026-28350
lxml_html_clean is a project for HTML cleaning functionalities copied from . Prior to version 0.4.4, the tag passes through the default Cleaner configuration. While page_structure=True removes html, head, and title tags, there is no specific handling for <
nvd.nist.gov