Error after 9234 Update. XSS Vulnerability code detected in URL

Error after 9234 Update. XSS Vulnerability code detected in URL

Dear All, 

We have strange error after 9234 Update. 
Database - PostgreSQL. 

We have some Custom Reports emailed (every mounth, every week)  with Requests resolved by each Technician or assets in use by sites (see attached screenshot).

Situation 1.
When  we try to  Edit request  with report  (Something like change status from "Open" to "On hold") - and save -  Get error 
" XSS Vulnerability code detected in URL. Some script tags are detected in the values passed to this screen. This could be a Cross Site Scripting attack. So making this page as unavailable.  "

Situation 2.
In request use button "reply" -  Gettin new  window "Send Notification" with new  email.  You can type some text or waiting  some minutes -  This window will closed suddenly with same  error as in Situation1.  Typed text is lost :(

Untill 9234 update we can do it without any XSS errors.  
Yesterday  updated at 9235 -  same error. 

Any Ideas?

BR,

Alex Matvee

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