CVE-2018-12402

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    CVE-2018-12402

    Published: 28 Feb 2019Last Modified: 10 Mar 2026

    Summary:

    Details: The internal WebBrowserPersist code does not use correct origin context for a resource being saved. This manifests when sub-resources are loaded as part of "Save Page As..." functionality. For example, a malicious page could recover a visitor's Windows username and NTLM hash by including resources otherwise unreachable to the malicious page, if they can convince the visitor to save the complete web page. Similarly, SameSite cookies are sent on cross-origin requests when the "Save Page As..." menu item is selected to save a page, which can result in saving the wrong version of resources based on those cookies. This vulnerability affects Firefox < 63.

    References: , http://www.securityfocus.com/bid/105721, http://www.securitytracker.com/id/1041944, https://usn.ubuntu.com/3801-1/, https://www.mozilla.org/security/advisories/mfsa2018-26/, https://bugzilla.mozilla.org/show_bug.cgi?id=1447087, https://bugzilla.mozilla.org/show_bug.cgi?id=1469916

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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