Description

The Bulk SEO Image plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to and including 1.1. This is due to missing or incorrect nonce validation on the plugin's settings page handler BulkSeoImage(), which dispatches to launchbulk() / BulkSeoImageGo() whenever the request contains $_POST['bulkseoimage']. No wp_nonce_field() is emitted in the form and no check_admin_referer()/wp_verify_nonce() is performed before bulk-overwriting the _wp_attachment_image_alt post meta for every image attached to every published post and/or page. This makes it possible for unauthenticated attackers to bulk-overwrite image ALT-text metadata across the site via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Weaknesses 1

References 4

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bulk-seo-image/tags/1.1/bulk-seo-image.php#L11
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bulk-seo-image/tags/1.1/bulk-seo-image.php#L147
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bulk-seo-image/tags/1.1/bulk-seo-image.php#L76
• wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/ef176a6c-33d1-45d6-8a1d-3df1e8eb2170?source=cve

Remediation