UBUNTU-CVE-2026-28348

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2026-28348

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-28348.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-28348

Upstream

CVE-2026-28348

Published

2026-03-05T20:16:00Z

Modified

2026-03-14T09:20:43.649988Z

Severity

6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

lxmlhtmlclean is a project for HTML cleaning functionalities copied from lxml.html.clean. Prior to version 0.4.4, the hassneaky_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.

References

Affected packages

Ubuntu:24.04:LTS / lxml-html-clean

Package

Name: lxml-html-clean
Purl: pkg:deb/ubuntu/lxml-html-clean@0.1.1-1?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.1.0-0ubuntu1

0.1.1-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python3-lxml-html-clean",
            "binary_version": "0.1.1-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-28348.json"

Ubuntu:25.10 / lxml-html-clean