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There are several stored XSS vulnerabilities #112

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Quarkay opened this issue Jul 8, 2021 · 1 comment · Fixed by #113
Closed

There are several stored XSS vulnerabilities #112

Quarkay opened this issue Jul 8, 2021 · 1 comment · Fixed by #113

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@Quarkay
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Quarkay commented Jul 8, 2021

Affected version: <= 3.3.0 (all versions yet)
Including Custom Edition I guess.

Usage of "v-html" tag should be really careful in vue. I found several unsafe usage in bbs-go webpage which data source might be from any user. It's necessary to filter the rich text before it is posted to the client. Otherwise it will be dangerous.

Here is the XSS attack example screenshot (one of them) :

XSS attack example

And the unsafe "v-html" tag for topic content (one of them) :

unsafe "v-html" tag

I will report the poc code after mlogclub team confirm and fix this defect.

@Quarkay
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Quarkay commented Jul 8, 2021

I filed a pull request to resolve this issue as a reference : #113

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