[wp-trac] [WordPress Trac] #64545: Style Engine: Harden add_declaration against being passed illegal values

[WordPress Trac]

#64545: Style Engine: Harden add_declaration against being passed illegal values
-------------------------------------------------+-------------------------
 Reporter:  andrewserong                         |       Owner:
                                                 |  isabel_brison
     Type:  defect (bug)                         |      Status:  reopened
 Priority:  normal                               |   Milestone:  6.9.1
Component:  Editor                               |     Version:  trunk
 Severity:  normal                               |  Resolution:
 Keywords:  gutenberg-merge has-patch has-unit-  |     Focuses:
  tests dev-feedback                             |
-------------------------------------------------+-------------------------

Comment (by wildworks):

 > it can cause fatal errors on the front end when block attributes are
 malformed.

 If I understand correctly, this bug has been there since 6.1 when the
 `WP_Style_Engine_CSS_Declarations` class was introduced, right?

 https://github.com/WordPress/wordpress-develop/blob/6.1/src/wp-includes
 /style-engine/class-wp-style-engine-css-declarations.php#L58-L67

 I don't have a strong opinion, but personally I don't think it's necessary
 to backport it to a minor release right now.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/64545#comment:6>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform