The Theron Lite WordPress theme (versions up to 2.0) contains a stored cross-site scripting vulnerability (CWE-79) via the 'url' parameter in its Button shortcode. This flaw allows authenticated users with Contributor-level privileges or higher to inject arbitrary web scripts that persist and execute when other users access the compromised page. The vulnerability is due to inadequate input sanitization and output escaping in the theme's code. The CVSS 3.1 score of 6.4 reflects a medium severity with network attack vector, low attack complexity, and privileges required at the contributor level. No patch or official remediation has been documented in the provided data.

Successful exploitation allows an authenticated user with Contributor or higher privileges to inject persistent malicious scripts into pages, potentially leading to unauthorized actions or data exposure when other users view the infected content. The impact affects confidentiality and integrity but does not affect availability. There are no known exploits in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Contributor-level access to trusted users only and consider disabling or removing the Theron Lite theme if possible. Monitor for updates from the vendor or theme author for a security patch addressing this vulnerability.