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openeclass– Multiple Cross-Site Scripting (XSS) #11

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bestshow opened this issue Mar 28, 2017 · 4 comments

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commented Mar 28, 2017

Product: openeclass
Download: https://github.com/gunet/openeclass
Vunlerable Version: Release_3.5.4 and probably prior
Tested Version: Release_3.5.4
Author: ADLab of Venustech

Advisory Details:
Multiple Cross-Site Scripting (XSS) were discovered in “openeclass Release_3.5.4”, which can be exploited to execute arbitrary code.
The vulnerabilities exist due to insufficient filtration of user-supplied data in multiple parameters passed to the “openeclass-master/modules/tc/webconf/webconf.php” URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.
The exploitation examples below use the "alert()" JavaScript function to see a pop-up messagebox:
Poc:
(1)
http://localhost/.../openeclass-master/modules/tc/webconf/webconf.php?meeting_id=%22%3E%3Cscript%3Ealert(1);%3C/script%3E%3C%22
(2)
http://localhost/.../openeclass-master/modules/tc/webconf/webconf.php?user=%22;%3C/script%3E%3Cscript%3Ealert(1);%3C/script%3E%3Cscript%3E

@jexi

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commented Mar 29, 2017

Thank you very much! Script has been fixed.

@attritionorg

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commented Apr 1, 2017

Can you link to the fixing commit please?

@adia

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commented Apr 3, 2017

Please see the following commits:
e804fff (future development branch - 4.0)
18d625f (next release branch - 3.6)
55fde0b (current release branch - 3.5.5)
Thanks again!

@adia adia closed this Apr 3, 2017

@attritionorg

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commented Apr 4, 2017

Great thank you!

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