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KSES: Allow box-sizing in safecss_filter_attr() #14708

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KSES: Allow box-sizing in safecss_filter_attr() #14708

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2 changes: 2 additions & 0 deletions src/wp-includes/kses.php
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Original file line number Diff line number Diff line change
Expand Up @@ -3693,6 +3693,7 @@ function kses_init() {
* and URLs in the SVG element reference properties.
* @since 7.2.0 Added support for CSS anchor positioning properties and `text-shadow`.
* Added support for `background-clip`.
* Added support for `box-sizing`.
*
* @param string $css A string of CSS rules, decoded from an HTML `style` attribute.
* @param string $deprecated Not used.
Expand Down Expand Up @@ -3878,6 +3879,7 @@ function safecss_filter_attr( $css, $deprecated = '' ) {
'left',
'z-index',
'box-shadow',
'box-sizing',
'aspect-ratio',
'container-type',

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5 changes: 5 additions & 0 deletions tests/phpunit/tests/kses.php
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Expand Up @@ -1534,6 +1534,11 @@ public function data_safecss_filter_attr() {
'css' => 'text-shadow: var(--wp--preset--text-shadow--soft)',
'expected' => 'text-shadow: var(--wp--preset--text-shadow--soft)',
),
// `box-sizing` introduced in 7.2.0.
array(
'css' => 'box-sizing: border-box',
'expected' => 'box-sizing: border-box',
),
// Expressions are not allowed.
array(
'css' => 'height: expression( body.scrollTop + 50 + "px" )',
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