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Strip inline SVG data URIs prior to content parsing #1102

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Merged
Parent: Develop: 3.2.14
merged 1 commit into from
Oct 9, 2025
Merged

Strip inline SVG data URIs prior to content parsing #1102

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22 changes: 22 additions & 0 deletions php/class-utils.php
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Original file line number Diff line number Diff line change
Expand Up @@ -620,6 +620,9 @@ public static function is_admin() {
* @return array
*/
public static function extract_urls( $content ) {
// Remove inline SVG data URIs, as they can cause parsing issues when extracting URLs.
$content = self::strip_inline_svg_data_uris( $content );

preg_match_all(
"#([\"']?)("
. '(?:[\w-]+:)?//?'
Expand All @@ -642,6 +645,25 @@ public static function extract_urls( $content ) {
return array_values( $post_links );
}

/**
* Strip inline SVG data URIs from content.
*
* @param string $content The content to process.
*
* @return string The content with SVG data URIs removed.
*/
public static function strip_inline_svg_data_uris( $content ) {
// Pattern to match the data URI structure: data:image/svg+xml;base64,<base64-encoded-data>.
$svg_data_uri_pattern = '/data:image\/svg\+xml;base64,[a-zA-Z0-9\/\+\=]+/i';

// Remove all occurrences of SVG data URIs from the content.
$cleaned_content = preg_replace( $svg_data_uri_pattern, '', $content );

// In case an error occurred, we return the original content to avoid data loss.
return is_null( $cleaned_content ) ? $content : $cleaned_content;
}


/**
* Is saving metadata.
*
Expand Down