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    CVE-2020-6813

    When protecting CSS blocks with the nonce feature of Content Security Policy, the @import statement in the CSS block could allow an attacker to inject arbitrary styles, bypassing the intent of the Content Security Policy. This vulnerability affects Firefox < 74.

    Published:Mar 10, 2020
    Last Modified:Nov 21, 2024
    EPS:Mar 25, 2020
    EPSS Score:0.00134
    CVSS Score:5.3

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-284 Improper Access Control

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    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