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reasoncms – Cross-Site Scripting (XSS) #264

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bestshow opened this Issue Mar 2, 2017 · 2 comments

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bestshow commented Mar 2, 2017

Product: reasoncms
Download: https://github.com/reasoncms/reasoncms
Vunlerable Version: v4.7 and probably prior
Tested Version: v4.7
Author: ADLab of Venustech

Advisory Details:
A Cross-Site Scripting (XSS) was discovered in“reasoncms v4.7”, which can be exploited to execute arbitrary code.
The vulnerability exists due to insufficient filtration of user-supplied data in the “nyroModalSel” HTTP GET parameter passed to the “reasoncms-master/www/nyroModal/demoSent.php” URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.
The exploitation example below uses the "alert()" JavaScript function to see a pop-up messagebox:
Poc:
http://localhost/.../reasoncms-master/www/nyroModal/demoSent.php?nyroModalSel=%22%3E%3Cscript%3Ealert(1);%3C/script%3E%3C%22

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mryand commented Mar 2, 2017

@mryand mryand closed this Mar 2, 2017

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mryand Mar 2, 2017

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Thank you for reporting this bug, @bestshow !

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mryand commented Mar 2, 2017

Thank you for reporting this bug, @bestshow !

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