Silverstripe · Silverstripe · CVE-2011-4958
**Name of the Vulnerable Software and Affected Versions**
SilverStripe versions prior to 2.3.13
SilverStripe versions 2.4.x prior to 2.4.6
**Description**
A cross-site scripting (XSS) issue exists due to insufficient input validation in the `process` function within `SSViewer.php`. This allows remote attackers to inject arbitrary web script or HTML via the `QUERY STRING` to template placeholders. Examples of vulnerable endpoints include "/admin/reports/", "/admin/comments/", "/admin/", "/admin/show/", "/admin/assets/", and "/admin/security/".
**Recommendations**
For SilverStripe versions prior to 2.3.13, update to version 2.3.13 or later.
For SilverStripe versions 2.4.x prior to 2.4.6, update to version 2.4.6 or later.