Slugs Manager < 2.7.0 - Cross-Site Request Forgery

Description

The Slugs Manager plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.6.7. This is due to missing or incorrect nonce validation on the maybe_flush_rewrite_rules() function. This makes it possible for unauthenticated attackers to flush the rewrite rules via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.