# Secuiyrt issue in App **URL:** \ **Category:** Rails\ **Created:** [April 5, 2010, 12:11pm UTC](https://www.ruby-forum.com/t/secuiyrt-issue-in-app/186345 "2010-04-05T12:11:14Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![gandhi-tush](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/5daacb/32.png) [@gandhi-tush](https://www.ruby-forum.com/u/gandhi-tush)\ **Post date:** [April 5, 2010, 12:11pm UTC](https://www.ruby-forum.com/t/secuiyrt-issue-in-app/186345/1 "2010-04-05T12:11:14Z")
Hi, I am facing a following problem:- I have app in which user can edit his/her personal information and we are showing it on browser. Some of users has added “” javascript in name textbox. Due to this whenever I am showing name on browser it is executing the script and giving javascript alert. Can anyone tell me how to fix this? Is there any plugin avaliable? Thanks, Tushar ---
**Author:** ![gandhi-tush](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/5daacb/32.png) [@gandhi-tush](https://www.ruby-forum.com/u/gandhi-tush)\ **Post date:** [April 5, 2010, 12:29pm UTC](https://www.ruby-forum.com/t/secuiyrt-issue-in-app/186345/2 "2010-04-05T12:29:44Z")
use \<%= h @user.information %\> This will escape angle brackets and therefore neutralize any embedded JavaScript ushar Gandhi wrote: > Hi, > I am facing a following problem:- > I have app in which user can edit his/her personal information and we > are showing it on browser. Some of users has added > “” javascript in name textbox. Due to > this whenever I am showing name on browser it is executing the script > and giving javascript alert. > Can anyone tell me how to fix this? Is there any plugin avaliable? > > Thanks, > Tushar ---
**Author:** ![gandhi-tush](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/5daacb/32.png) [@gandhi-tush](https://www.ruby-forum.com/u/gandhi-tush)\ **Post date:** [April 5, 2010, 12:37pm UTC](https://www.ruby-forum.com/t/secuiyrt-issue-in-app/186345/3 "2010-04-05T12:37:34Z")
On 5 April 2010 11:29, Charanya N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > use > \<%= h @user.information %\> > This will escape angle brackets and therefore neutralize any embedded > JavaScript _Any_ user entered data that you display should be escaped in this way. You are lucky that no-one with more malicious intentions has found the hole in your system. I strongly suggest that you study the guide on securing rails applications at [http://guides.rubyonrails.org/](http://guides.rubyonrails.org/). There may be other more serious holes in your app. Colin ---
**Author:** ![gandhi-tush](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/5daacb/32.png) [@gandhi-tush](https://www.ruby-forum.com/u/gandhi-tush)\ **Post date:** [April 5, 2010, 12:40pm UTC](https://www.ruby-forum.com/t/secuiyrt-issue-in-app/186345/4 "2010-04-05T12:40:51Z")
Charanya N. wrote: > use > \<%= h @user.information %\> > This will escape angle brackets and therefore neutralize any embedded > JavaScript > > ushar Gandhi wrote: > > > Hi, > > I am facing a following problem:- > > I have app in which user can edit his/her personal information and we > > are showing it on browser. Some of users has added > > “” javascript in name textbox. Due to > > this whenever I am showing name on browser it is executing the script > > and giving javascript alert. > > Can anyone tell me how to fix this? Is there any plugin avaliable? > > > > Thanks, > > Tushar Thanks a lot. It is working fine. ---
**Author:** ![gandhi-tush](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/5daacb/32.png) [@gandhi-tush](https://www.ruby-forum.com/u/gandhi-tush)\ **Post date:** [April 5, 2010, 2:31pm UTC](https://www.ruby-forum.com/t/secuiyrt-issue-in-app/186345/5 "2010-04-05T14:31:06Z")
Yes, you can escape user data. But you also should not allow the original request (with the “Hack”) to complete. Try to use mod\_security in your apache installation! 2010/4/5 Tushar G. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > > > are showing it on browser. Some of users has added > > > – > > > [http://groups.google.com/group/rubyonrails-talk?hl=en](http://groups.google.com/group/rubyonrails-talk?hl=en). – Mário Sérgio Coelho Marroquim > **[blogdomario](https://blogdomario.wordpress.com/)** [http://www.muraldeideias.com.br](http://www.muraldeideias.com.br) > **[Home - Credishop](https://www.credishop.com.br/)** > > Mais conquistas na sua vida Crédito aprovado com facilidade Possibilidade de usar o crédito rotativo Cartão adicional totalmente grátis Parcela suas compras Pode ter 42 dias para pagar Aceito em diversos estabelecimentos … menos é Leia mais… ---
**Author:** ![gandhi-tush](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/5daacb/32.png) [@gandhi-tush](https://www.ruby-forum.com/u/gandhi-tush)\ **Post date:** [April 5, 2010, 4:38pm UTC](https://www.ruby-forum.com/t/secuiyrt-issue-in-app/186345/6 "2010-04-05T16:38:06Z")
On Mon, Apr 5, 2010 at 5:29 AM, Mario Sergio Coelho Marroquim [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Yes, you can escape user data. But you also should not allow the original > request (with the “Hack”) to complete. Try to use mod\_security in your > apache installation! Is there a non-Apache-httpd equivalent? – Hassan S. ------------------------ removed\_email\_address@domain.invalid twitter: @hassan