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    CVE-2015-4490

    The nsCSPHostSrc::permits function in dom/security/nsCSPUtils.cpp in Mozilla Firefox before 40.0 does not implement the Content Security Policy Level 2 exceptions for the blob, data, and filesystem URL schemes during wildcard source-expression matching, which might make it easier for remote attackers to conduct cross-site scripting (XSS) attacks by leveraging unexpected policy-enforcement behavior.

    Published:Aug 11, 2015
    Last Modified:Apr 12, 2025
    EPS:Aug 16, 2015
    EPSS Score:0.00489
    CVSS Score:4.3

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Oracle
    Product
    Solaris

    Exploits

    No exploit reference

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    References

    http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html
    http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html
    http://www.mozilla.org/security/announce/2015/mfsa2015-91.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
    http://www.securitytracker.com/id/1033247
    http://www.ubuntu.com/usn/USN-2702-1
    http://www.ubuntu.com/usn/USN-2702-2
    http://www.ubuntu.com/usn/USN-2702-3
    https://bugzilla.mozilla.org/show_bug.cgi?id=1086999
    https://security.gentoo.org/glsa/201605-06
    http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html
    http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html
    http://www.mozilla.org/security/announce/2015/mfsa2015-91.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
    http://www.securitytracker.com/id/1033247
    http://www.ubuntu.com/usn/USN-2702-1
    http://www.ubuntu.com/usn/USN-2702-2
    http://www.ubuntu.com/usn/USN-2702-3
    https://bugzilla.mozilla.org/show_bug.cgi?id=1086999
    https://security.gentoo.org/glsa/201605-06

    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