[wp-trac] [WordPress Trac] #49464: wp_kses_hair and wp_kses_hair_parse regex is not allowing digits or underscores in attribute names

[WordPress Trac]

#49464: wp_kses_hair and wp_kses_hair_parse regex is not allowing digits or
underscores in attribute names
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 Reporter:  codeforest                |       Owner:  (none)
     Type:  defect (bug)              |      Status:  new
 Priority:  normal                    |   Milestone:  5.5
Component:  Formatting                |     Version:  5.3.2
 Severity:  major                     |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Comment (by zodiac1978):

 Replying to [comment:12 codeforest]:
 > Do we know if this is accepted for 5.5?

 It is milestoned for 5.5 and the 5.5 lead (@whyisjake) is watching the
 ticket, so I think it looks good.

 There are many things going on, but hopefully this is merged before the
 beta on 7th July 2020
 https://make.wordpress.org/core/5-5/

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Ticket URL: <https://core.trac.wordpress.org/ticket/49464#comment:13>
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