Css Hero · Css Hero · CVE-2019-19133
**Name of the Vulnerable Software and Affected Versions**
CSS Hero plugin versions prior to 4.0.4
**Description**
The issue is related to reflected XSS via the URI in a `csshero action=edit page` request. It occurs because the plugin fails to sufficiently sanitize user-supplied input, allowing an attacker to execute arbitrary JavaScript in the browser of an unsuspecting user. This could enable the attacker to steal cookies or launch other attacks.
**Recommendations**
For CSS Hero plugin versions prior to 4.0.4, update to version 4.0.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the `csshero action=edit page` request to minimize the risk of exploitation.