Question1Replies73Views MohithC8 Member since 2013 8 posts Accenture Posted: April 4, 2019Last activity: May 23, 2019 Closed HTTP header of microsite url contains encoded white space ‘%09’ - vulnerability for Evasion technique attackHi everyonethe link produced from Pega has some spaces (the %09% below) and it get blocked by the reverse proxy itself because according to our security team, this lead to Evasion technique attack vulnerability.https://XXXXX.com/prweb/PRHTTPService/MKT/RH/PORE?Px=%09%7Bpr%7DMdKZs%2BIQFDaY%2Fk2GWrVcn7mHKQZ6cLXFU2X2%2Fay2GCS proposed us some solution that should have trimmed the spaces but unfortunately it didn’t work (the spaces are still there).has anyone faced similar problem ? how it can be solved?***Edited by Moderator Marissa to update platform capability tags**** Pega Marketing ×Close popoverFacebookTwitterLinkedinEmail Copy Link Copied! Moderation Team has archived post This thread is closed to future replies. Content and links will no longer be updated. If you have the same/similar Question, please write a new Question. Posted: 1 year agoreachanuj PEGA replied to MohithC8Hi, It looks like its not space, It is horizontal tab which is der in the URL. If you want to then your should replace \t from the URL. Can you please let me know the SR number which is raised for this Use case.