Unauthenticated Users Can Exploit Missing Capability Check in Essential Blocks WordPress Plugin

Unauthenticated Users Can Exploit Missing Capability Check in Essential Blocks WordPress Plugin

CVE-2023-2083 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

The Essential Blocks plugin for WordPress is vulnerable to unauthorized use of functionality due to a missing capability check on the save function in versions up to, and including, 4.0.6. This makes it possible for subscriber-level attackers to save plugin settings. While a nonce check is present, it is only executed when a nonce is provided. Not providing a nonce results in the nonce verification to be skipped. There is no capability check.

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