Description
WordPress Plugin Contest Gallery-Photo Contest for WordPress is prone to an SQL injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query. Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. WordPress Plugin Contest Gallery-Photo Contest for WordPress version 13.1.0.5 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 13.1.0.6 or latest
References
https://gist.github.com/tpmiller87/6c05596fe27dd6f69f1aaba4cbb9c917
https://sploitus.com/exploit?id=WPEX-ID:45EE86A7-1497-4C81-98B8-9A8E5B3D4FAC
https://plugins.svn.wordpress.org/contest-gallery/trunk/readme.txt