Cross site Scripting :DOM and other security vulnerabilities in RH2017/ 2019

Our IT team use HP Fortify scanner to verify webhelp content created from RH 2017 (13.0.2.334)  which identified 15 Cross site scripting vulnerabilities along with 3 dynamic code evaluation and one open redirect flaw.  This is in a small help file of approx 50 pages!

Looking in this forum this seems to be a long running issue with RH over a number of versions.

Adobe help suggested upgrade to 2019 free trial version - which i did, but majority of issues remain unresolved.  Latest communication from Adobe says they acknowledge the bug and will look to fix on a future release.  That really doesn't help when we have products due for launch imminently  where i am supplying the help content and our IT team will not allow the files  to be used  -and also existing help files in live products are now likely to be withdrawn.

I am not technically savvy, but these issues seem to be very serious and the continual solution seems to be "Buy the latest version"  - indicating no appetite for fixing currently owned software?

Does anyone have a solution which can be implemented as i believe happened with RH 11 or 2015 versions?

Thanks