WordPress CVEs

Description

The Shariff Wrapper plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'headline' parameter in the [shariff] shortcode in all versions up to, and including, 4.6.20 due to insufficient input sanitization and output escaping. 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. The vulnerability occurs because the plugin uses a custom wp_kses implementation with permissive allowed HTML tags, and then performs a str_replace operation that injects HTML after sanitization, allowing event handlers to be introduced through the %total placeholder in the style attribute.

Affected WordPress components

• Shariff Wrapper Plugin · shariff
  Confirmed match Active
  Up to and including 4.6.20
  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

• 3uu Shariff Wrapper — Up to and including 4.6.20

References

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/shariff/trunk/shariff.php#L1143
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/shariff/trunk/shariff.php#L1144
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/shariff/trunk/shariff.php#L868
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/shariff/trunk/shariff.php#L965
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3532532%40shariff&new=3532532%40shariff&sfp_email=&sfph_mail=
• www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/e037d22a-3d4d-4f70-a749-6d6c552c7553?source=cve
• nvd.nist.gov Official NVD record