Skip to main content
Showing results for 
Search instead for 
Did you mean: 

Find everything you need to get certified on Fabric—skills challenges, live sessions, exam prep, role guidance, and more. Get started

Not applicable

Validate URL Filter

I'm embedding reports using a URL filter to only show the data that the user is supposed to see. 

An iFrame with a url source is easy to manipulate and therefore a vulnerability so i've been testing different combinations of bad filters and querystrings.

I've found that if I pass a filter with a trailing whitespace character, or anything really that is not supposed to be in the filter, the filter is not applied and the report will show all the data.

Eg. http://localhost/Reports/powerbi/MyReport?filter=tableone/column in ('a', 'b', 'c') &rs:Embed=true

Is there any way of changing this behavior so that when a invalid filter is passed with the URL  no data will show in the report? 


At the moment the only solution I can think of is to test the filter with regex. And since I'm using custom security end up returning a 403 (I don't now how to return something else, like in this case a 400 Bad Request)

Super User
Super User

If you want to restrict what the user can see you should look at implementing Row Level Security so that the permissions are enforced at the model level.


Because couldn't the user just grab the start of the URL and open the report directly in the portal (eg.  http://localhost/Reports/powerbi/MyReport) in a new browser window bypassing any logic on your page?

Not applicable

Yes, I need to look at RLS.


No I parse the URL looking for specific IDs which I then authorize using my security extension. But of course that could've been a real security miss.


Thank you!

@Anonymous   I've been tasked with parsing the Power BI URL and can't figure out how to do it.  Do you mind sharing how you achieved this?


(Essentially, there is a button in the Power BI report that links to additonal information, and I want to read the Power BI URL for a variable in there that will be used to create the dynamic link in the button).



Not applicable

Not sure I understand what you mean but i simply just extract the URL from the IRSRequestContext and then do string validation on it using regex and other rules specificly for my purpose.

I do this in my implementation of IAuthenticationExtension2.GetUserInfo 

Helpful resources

Europe Fabric Conference

Europe’s largest Microsoft Fabric Community Conference

Join the community in Stockholm for expert Microsoft Fabric learning including a very exciting keynote from Arun Ulag, Corporate Vice President, Azure Data.

Power BI Carousel June 2024

Power BI Monthly Update - June 2024

Check out the June 2024 Power BI update to learn about new features.

RTI Forums Carousel3

New forum boards available in Real-Time Intelligence.

Ask questions in Eventhouse and KQL, Eventstream, and Reflex.