The SiteOrigin Widgets Bundle plugin for WordPress is vulnerable to Directory Traversal in all…

Why it is Yellow

• CVSS 6.5 medium

References

• https://github.com/siteorigin/so-widgets-bundle/compare/540f834469fe...bf80892709fb
• https://plugins.trac.wordpress.org/browser/so-widgets-bundle/tags/1.74.3/base/inc/shortcode.php#L31
• https://plugins.trac.wordpress.org/browser/so-widgets-bundle/tags/1.74.3/base/inc/shortcode.php#L51
• https://plugins.trac.wordpress.org/browser/so-widgets-bundle/tags/1.74.3/base/siteorigin-widget.class.php#L1006
• https://plugins.trac.wordpress.org/browser/so-widgets-bundle/tags/1.74.3/base/siteorigin-widget.class.php#L1117
• https://plugins.trac.wordpress.org/browser/so-widgets-bundle/tags/1.74.3/base/siteorigin-widget.class.php#L1134
• https://plugins.trac.wordpress.org/browser/so-widgets-bundle/tags/1.74.3/base/siteorigin-widget.class.php#L1148
• https://plugins.trac.wordpress.org/changeset/3724795/so-widgets-bundle/trunk/base/siteorigin-widget.class.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/500f18e6-14ca-4632-9317-5886fa2bb763?source=cve

Original description

The SiteOrigin Widgets Bundle plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.74.3 via the get_instance_css function. This makes it possible for authenticated attackers, with contributor-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The widget's normal update()/sanitize_field_input() pipeline — which would reject non-hex color values — is bypassed entirely because the [siteorigin_widget] shortcode handler calls $the_widget->widget() directly on the attacker-supplied decoded JSON instance.