PDF Poster – let visitors read PDFs without leaving the page

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Use placeholders and $wpdb->prepare(); found $doc

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Unescaped parameter $sql used in $wpdb->query()\n$sql assigned unsafely at line 209.

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Use placeholders and $wpdb->prepare(); found interpolated variable {$table} at FROM {$table} WHERE day < %s"

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Incorrect number of replacements passed to $wpdb->prepare(). Found 1 replacement parameters, expected 2.

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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'self'.

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Use of a direct database call is discouraged.

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Direct database call without caching detected. Consider using wp_cache_get() / wp_cache_set() or wp_cache_delete().

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Library files that are already in the WordPress core are not permitted.

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Plugin name "PDF Poster – let visitors read PDFs without leaving the page" is different from the name declared in plugin header "PDF Poster – Display PDF Files with Custom Viewer".