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Shortcodes: don't allow unclosed HTML elements in attributes

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Merges [34134] for 4.3 branch


git-svn-id: https://develop.svn.wordpress.org/branches/4.3@34144 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Nikolay Bachiyski 2015-09-14 22:46:42 +00:00
parent 456d7625f3
commit 1ef7a790b5
2 changed files with 11 additions and 0 deletions
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2
src/wp-includes/media.php
View File

@ -863,6 +863,8 @@ function img_caption_shortcode( $attr, $content = null ) {
$content = $matches[1];
$attr['caption'] = trim( $matches[2] );
}
} elseif ( strpos( $attr['caption'], '<' ) !== false ) {
$attr['caption'] = wp_kses( $attr['caption'], 'post' );
}
/**

9
src/wp-includes/shortcodes.php
View File

@ -462,6 +462,15 @@ function shortcode_parse_atts($text) {
elseif (isset($m[8]))
$atts[] = stripcslashes($m[8]);
}
// Reject any unclosed HTML elements
foreach( $atts as &$value ) {
if ( false !== strpos( $value, '<' ) ) {
if ( 1 !== preg_match( '/^[^<]*+(?:<[^>]*+>[^<]*+)*+$/', $value ) ) {
$value = '';
}
}
}
} else {
$atts = ltrim($text);
}