WordPress CVEs

Description

The HTTP Headers plugin for WordPress is vulnerable to CRLF Injection in all versions up to, and including, 1.19.2. This is due to insufficient sanitization of custom header name and value fields before writing them to the Apache .htaccess file via `insert_with_markers()`. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary newline characters and additional Apache directives into the .htaccess configuration file via the 'Custom Headers' settings, leading to Apache configuration parse errors and potential site-wide denial of service.

Affected WordPress components

• HTTP Headers Plugin · http-headers
  Confirmed match Active
  Up to and including 1.19.2
  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

• zinoui HTTP Headers — Up to and including 1.19.2

References

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/http-headers/tags/1.19.2/http-headers.php#L1098
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/http-headers/tags/1.19.2/http-headers.php#L745
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/http-headers/trunk/http-headers.php#L1098
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/http-headers/trunk/http-headers.php#L745
• www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/7716e77f-e899-4046-9421-86fc0c36c245?source=cve
• nvd.nist.gov Official NVD record