Bug 41383 - AllowHtmlAttribute ignored throwing exception on POST using ASP.NET mvc
Summary: AllowHtmlAttribute ignored throwing exception on POST using ASP.NET mvc
Status: NEW
Alias: None
Product: Class Libraries
Classification: Mono
Component: System.Web (show other bugs)
Version: 4.5.X
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2016-05-31 01:31 UTC by Juan Urroa
Modified: 2016-05-31 01:31 UTC (History)
1 user (show)

Tags:
Is this bug a regression?: ---
Last known good build:

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.


Please create a new report for Bug 41383 on GitHub or Developer Community if you have new information to add and do not yet see a matching new report.

If the latest results still closely match this report, you can use the original description:

  • Export the original title and description: GitHub Markdown or Developer Community HTML
  • Copy the title and description into the new report. Adjust them to be up-to-date if needed.
  • Add your new information.

In special cases on GitHub you might also want the comments: GitHub Markdown with public comments

Related Links:
Status:
NEW

Description Juan Urroa 2016-05-31 01:31:27 UTC
This is the same bug as https://bugzilla.xamarin.com/show_bug.cgi?id=8965 happening on the version for centos 7 installed as described in the downloads page of mono (version mono-complete-4.2.3.4-0) but I can't find a way to reopen the bug.
The version of mvc is System.Web.Mvc 5.2.3.0 as installed by the template from visual studio
This is the original bug description the current version does the same:


Syed Rahman 2011-07-07 22:49:09 UTC
User-Agent:       Mozilla/5.0 (Windows NT 6.0; rv:5.0) Gecko/20100101
Firefox/5.0

Using the AllowHtmlAttribute to mark a property on a model so that you can post
html on a form to your controller throws an exception

System.Web.HttpRequestValidationException

with the "A potentially dangerous Form value ..."
messasge even though the AllowHtmlAttribute property is for the purpose of not
validating to see if html exists in property.


Reproducible: Always

Steps to Reproduce:
1. Create a model with a property marked with [AllowHtml]
2. Create a controller with both Get and Post action with the model being in
post
3. Create a view which submits to controller action, with the property being a
textbox, and a button ot submit
4. Fire up the view, put some html in the textbox and post

Exception thrown

In step 4, put basic text, submits fine
Actual Results:  
Exception thrown

Expected Results:  
Should have submitted form to action