CVE-2013-5738: WordPress

Medium severity, CVSS 4.3. EPSS: 2.4% chance of exploitation in the next 30 days.

The get_allowed_mime_types function in wp-includes/functions.php in WordPress before 3.6.1 does not require the unfiltered_html capability for uploads of .htm and .html files, which might make it easier for remote authenticated users to conduct cross-site scripting (XSS) attacks via a crafted file.

Affected products

• WordPress WordPress: up to and including 3.6

Published 2013-09-12. Last modified 2026-06-16.