The NextGen Cooliris Gallery plugin by zackdesign suffers from a stored cross-site scripting vulnerability due to improper input neutralization during web page generation. This allows an attacker with low privileges to inject malicious scripts that execute when a user views the affected content. The vulnerability affects versions up to 0.7. The CVSS 3.1 vector indicates network attack vector, low attack complexity, low privileges required, user interaction required, and impacts on confidentiality, integrity, and availability at a low level.

Successful exploitation can lead to execution of arbitrary scripts in the context of the affected web application, potentially allowing attackers to steal user data, manipulate content, or disrupt availability. The impact is rated medium with partial loss of confidentiality, integrity, and availability. There are no reports of active exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting privileges for users who can submit content and apply web application firewall (WAF) rules to detect and block XSS payloads related to this plugin. Monitor vendor channels for updates and apply patches promptly once available.