Fix security and logic bugs in image generator and OG tags
- Fix null-dereference: check !$post with || before accessing post_type - Sanitize $_GET['post'] with absint() before use - Escape OG tag attribute values with esc_attr()/esc_url() Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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@@ -115,12 +115,14 @@ add_action('init', 'add_image_generator_endpoint');
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function handle_image_request() {
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if (!isset($_GET['post'])) return;
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$post_id = $_GET['post'];
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$post_id = absint( $_GET['post'] );
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if ( $post_id <= 0 ) return;
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$post = get_post($post_id);
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// Verify post type
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if (!$post && $post->post_type !== 'sp_event') return;
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if (!$post || $post->post_type !== 'sp_event') return;
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// Get associated teams from post meta
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$team_ids = get_post_meta($post_id, 'sp_team', false); // false to get an array of values
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@@ -189,10 +189,10 @@ function custom_open_graph_tags_with_sportspress_integration() {
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$description .= " " . $post->post_content;
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$image = asc_sp_event_matchup_image_url( $post );
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echo '<meta property="og:type" content="article" />' . "\n";
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echo '<meta property="og:image" content="'. $image . '" />' . "\n";
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echo '<meta property="og:title" content="' . $title . '" />' . "\n";
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echo '<meta property="og:description" content="' . $description . '" />' . "\n";
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echo '<meta property="og:url" content="' . get_permalink() . '" />' . "\n";
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echo '<meta property="og:image" content="' . esc_url( $image ) . '" />' . "\n";
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echo '<meta property="og:title" content="' . esc_attr( $title ) . '" />' . "\n";
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echo '<meta property="og:description" content="' . esc_attr( $description ) . '" />' . "\n";
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echo '<meta property="og:url" content="' . esc_url( get_permalink() ) . '" />' . "\n";
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}
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}
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}
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