CVE-2010-4536: WordPress

Medium severity, CVSS 4.3. EPSS: 3.4% chance of exploitation in the next 30 days.

Multiple cross-site scripting (XSS) vulnerabilities in KSES, as used in WordPress before 3.0.4, allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) the & (ampersand) character, (2) the case of an attribute name, (3) a padded entity, and (4) an entity that is not in normalized form.

Affected products

• WordPress WordPress: up to and including 3.0.3

Published 2011-01-03. Last modified 2026-06-16.