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    Dashboard / CVE / CVE-2021-4424

    CVE-2021-4424

    The Slider Hero plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 8.2.0. This is due to missing or incorrect nonce validation on the qc_slider_hero_duplicate() function. This makes it possible for unauthenticated attackers to duplicate slides via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

    Published:Jul 12, 2023
    Last Modified:Apr 8, 2026
    EPS:Jul 12, 2023
    EPSS Score:0.00163
    CVSS Score:4.3

    Affected Products

    Vendor
    Quantumcloud
    Product
    Slider Hero

    Exploits

    No exploit reference

    References

    https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/
    https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/
    https://plugins.trac.wordpress.org/changeset/2548890/slider-hero/trunk/qcld-slider-main.php
    https://www.wordfence.com/threat-intel/vulnerabilities/id/e6d195cd-4df8-4926-b834-d695fc05f81d?source=cve
    https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/
    https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/
    https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/
    https://plugins.trac.wordpress.org/changeset/2548890/slider-hero/trunk/qcld-slider-main.php
    https://www.wordfence.com/threat-intel/vulnerabilities/id/e6d195cd-4df8-4926-b834-d695fc05f81d?source=cve

    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