UBUNTU-CVE-2018-19787

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    UBUNTU-CVE-2018-19787

    Published: 2 Dec 2018Last Modified: 4 Feb 2026
    Upstream:
    CVE-2018-19787

    Summary:

    Details: An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not remove javascript: URLs that use escaping, allowing a remote attacker to conduct XSS attacks, as demonstrated by "j a v a s c r i p t:" in Internet Explorer. This is a similar issue to CVE-2014-3146.

    References: https://ubuntu.com/security/CVE-2018-19787, https://ubuntu.com/security/notices/USN-3841-1, https://ubuntu.com/security/notices/USN-3841-2, https://www.cve.org/CVERecord?id=CVE-2018-19787

    Affected packages

    Package

    Name: lxml

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.3.3-1ubuntu0.2

    Affected versions

    3.2.0-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High