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    CVE-2026-34424

    Smart Slider 3 Pro version 3.5.1.35 for WordPress and Joomla contains a multi-stage remote access toolkit injected through a compromised update system that allows unauthenticated attackers to execute arbitrary code and commands. Attackers can trigger pre-authentication remote shell execution via HTTP headers, establish authenticated backdoors accepting arbitrary PHP code or OS commands, create hidden administrator accounts, exfiltrate credentials and access keys, and maintain persistence through multiple injection points including must-use plugins and core file modifications.

    Published:Apr 9, 2026
    Last Modified:Apr 15, 2026
    EPS:Apr 9, 2026
    EPSS Score:0.00182
    CVSS Score:9.8

    Affected Products

    Vendor
    Nextendweb
    Product
    Smart Slider 3
    Vendor
    Wordpress
    Product
    Wordpress

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-506 Embedded Malicious Code

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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