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

WordPress Trac noreply at wordpress.org
Fri Jan 23 06:00:32 UTC 2026


#64545: Style Engine: Harden add_declaration against being passed illegal values
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 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                             |
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Changes (by isabel_brison):

 * keywords:  gutenberg-merge has-patch has-unit-tests => gutenberg-merge
     has-patch has-unit-tests dev-feedback


Comment:

 @jorbin @wildworks adding this bug to the milestone because it can cause
 fatal errors on the front end when block attributes are malformed. Thought
 it would be good to get it in! The patch is committed to trunk already but
 needs a double check from another committer to go into the release branch,
 right?

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Ticket URL: <https://core.trac.wordpress.org/ticket/64545#comment:5>
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