The Blocksy Companion plugin for WordPress is not secure in versions up to 1.8.67 and can be exploited by attackers who have contributor-level permissions or higher. This vulnerability allows attackers to inject malicious web scripts into the pages which get executed when a user visits the page. This is caused by a lack of proper sanitization and escaping of user-supplied data in the blocksy_posts shortcode.
This information is sourced from www.wpvulnerability.com. An open-source database of vulnerabilities maintained by the community. Help us out by submitting vulnerabilities!
Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:
> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21
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