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Product · SiteGround

Speed Optimizer – The All-In-One Performance-Boosting Plugin

2 known vulnerabilities.

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  • Medium 6.4
    CVE-2026-15421

    Speed Optimizer <= 7.8.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Image Tag Attributes

    The Speed Optimizer – The All-In-One Performance-Boosting Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Image Tag Attributes in all versions up to, and including, 7.8.0 due to insufficient input sanitization and output escaping.…

    SiteGround Speed Optimizer – The All-In-One Performance-Boosting Plugin Web / CMS