WordPress CVEs

Description

The Gutentools plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Post Slider block's block_id attribute in all versions up to, and including, 1.1.3. This is due to insufficient input sanitization and output escaping combined with a custom unescaping routine that reintroduces dangerous characters. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected WordPress components

• Gutentools Plugin · gutentools
  Possible match Active
  Up to and including 1.1.3
  View on WordPress.org
• Gutentools Theme · gutentools
  Possible match Active
  Up to and including 1.1.3
  View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

• gutentools Gutentools — Up to and including 1.1.3

References

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/gutentools/tags/1.1.3/core/blocks/post-slider.php#L232
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/gutentools/trunk/core/blocks/post-slider.php#L232
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/gutentools/trunk/core/gutentools_block.php#L123
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3476597/gutentools/trunk/core/blocks/post-slider.php
• www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/b2683b4e-b993-4c84-b7cc-a2cb511b4097?source=cve
• nvd.nist.gov Official NVD record