This vulnerability, classified under CWE-79, involves improper neutralization of input during web page generation in the Drupal Anti-Spam by CleanTalk module. It allows an attacker to inject malicious scripts that are reflected back to users, potentially leading to client-side code execution. The affected version explicitly stated is 0.0.0. There is no CVSS score or vendor advisory indicating a patch or fix at this time.

The vulnerability enables reflected Cross-site Scripting attacks, which can be used to execute arbitrary scripts in the context of the affected web application. This can lead to session hijacking, defacement, or redirection to malicious sites. However, no known exploits are reported in the wild, and the impact is limited to the affected module version.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider disabling or restricting the use of the affected module version. Monitor vendor channels for updates and apply patches promptly once released.