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    CVE-2026-3498

    The BlockArt Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'clientId' block attribute in all versions up to, and including, 2.2.15. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

    Published:Apr 11, 2026
    Last Modified:Apr 24, 2026
    EPS:Apr 11, 2026
    EPSS Score:0.00034
    CVSS Score:6.4

    Affected Products

    Vendor
    Wordpress
    Product
    Wordpress
    Vendor
    Wpblockart
    Product
    Blockart Blocks – Gutenberg Blocks, Page Builder Blocks ,wordpress Block Plugin, Sections & Template Library

    Exploits

    No exploit reference

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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