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Item6351: No input validation when adding a new tag

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AppliesTo: Component: Priority: CurrentState: WaitingFor: TargetRelease ReleasedIn
Extension TagMePlugin Normal Closed   n/a  

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Applies To:
Current State:
Waiting For:
Target Release:
Released In:


Joona Kannisto sent this by e-mail:

> Hi
> I looked TagMePlugin page on twiki.org and came to understanding that you're primary
> maintainers of TagMePlugin. I'm developing a small TWiki plugin as a part of my studies. To get
> a better understanding how Twiki plugins work I was looking at the TagMePlugin's way to handle
> user input and discovered that it doesn't properly validate it.
> For example typing url:
> "http://yourtwikihost/cgi-bin/twiki/view/Main/TWikiUsers?tpaction=add;tag=<blink>partyhard;tagmode="
> yields interesting results. Manually typing urlparameters bypasses the need for authentication so
> that you can tag any topic you are allowed to read (even with user 'guest') and you can use any tag
> you like, it doesn't even have to exist.
> Yours,
> Joona Kannisto

-- TWiki:Main/PeterThoeny - 20 Oct 2009

This is now fixed.

Docs are updated as well. Also removed the uninviting warning on top of the topic to not edit the page.

-- TWiki:Main.PeterThoeny - 25 Oct 2009

Re-opened to fix packaging issue. Also merged to 4.3 branch since this plugin is part of the TWiki release.

-- TWiki:Main.PeterThoeny - 27 Oct 2009

Summary No input validation when adding a new tag
ReportedBy TWiki:Main.PeterThoeny
Codebase 4.3.2, ~twiki4
SVN Range TWiki-5.0.0, Sun, 27 Sep 2009, build 18153
AppliesTo Extension
Component TagMePlugin
Priority Normal
CurrentState Closed

Checkins TWikirev:18183 TWikirev:18196 TWikirev:18197
TargetRelease n/a

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Topic revision: r7 - 2009-10-27 - PeterThoeny
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