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https://issues.apache.org/jira/browse/MYFACES-4279?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Andraschko resolved MYFACES-4279.
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Resolution: Fixed
> inputText: lack of user input validation (maxlength)
> ----------------------------------------------------
>
> Key: MYFACES-4279
> URL: https://issues.apache.org/jira/browse/MYFACES-4279
> Project: MyFaces Core
> Issue Type: Bug
> Components: General
> Affects Versions: 2.3.2, 3.0.0-SNAPSHOT
> Reporter: cnsgithub
> Priority: Major
> Labels: bypass, inputText, length, security, validation
> Fix For: 3.0.0-SNAPSHOT, 2.3.4
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> h2. Expected Behaviour
> Server side validation should be performed as well.
> h2. Actual Behaviour
> {{h:inputText maxlength}} is validated on client side only. However, client
> side validation may be bypassed easily.
> h2. Steps to reproduce
> I created a small github project to reproduce this behaviour:
> [https://github.com/cnsgithub/mojarra-ajax/tree/myfaces] (branch myfaces)
> To reproduce:
> - {{git clone [https://github.com/cnsgithub/mojarra-ajax]}}
> - {{git checkout myfaces}}
> - run {{mvn clean package jetty:run}}
> - after the server has started, open
> [http://localhost:8080/maxlength.xhtml|http://localhost:8080/index.xhtml]
> - Enter some characters and press the _Submit_ button. Everything is fine.
> - Press the _Hack_ button. 100 characters are written to the model.
> This issue was first found in PrimeFaces, see
> [https://github.com/primefaces/primefaces/issues/4420]. Other components may
> be affected as well.
>
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