800,000 WordPress Sites Affected by Arbitrary File Read Vulnerability in Smart Slider 3 WordPress Plugin

On February 23, 2026, we received a submission for an Arbitrary File Read vulnerability in Smart Slider 3, a WordPress plugin with an estimated more than 800,000 active installations. This vulnerability makes it possible for an authenticated attacker, with subscriber-level permissions or higher, to read arbitrary files on the server, which may contain sensitive information.

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