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The Shortcodes Ultimate WordPress plugin before 5.10.2 allows users with Contributor roles to perform stored XSS via shortcode attributes. Note: the plugin is inconsistent in its handling of shortcode attributes; some do escape, most don’t, and there are even some attributes that are insecure by design (same [su_button]’s onclick attribute). (CVSS:0.0) (Terminal Update:2021-09-20)

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