Description
WordPress Plugin Post Index is prone to a cross-site request forgery vulnerability. Exploiting this issue may allow a remote attacker to perform certain administrative actions and gain unauthorized access to the affected application; other attacks are also possible. WordPress Plugin Post Index version 0.7.5 is vulnerable; prior versions may also be affected.
Remediation
Edit the source code to ensure that CSRF protection is implemented with Nonce-like mechanism or disable the plugin until a fix is available
References
Related Vulnerabilities
WordPress Plugin WP-FaceThumb 'pagination_wp_facethumb' Parameter Cross-Site Scripting (0.1)
WordPress Plugin Brandfolder-Digital Asset Management Simplified Local/Remote File Inclusion (3.0)
WordPress Plugin Keyword Strategy Internal Links Multiple Cross-Site Scripting Vulnerabilities (2.0)