The wpion Live css plugin versions up to 1.3 suffer from a stored cross-site scripting vulnerability due to improper input neutralization during web page generation. This flaw allows attackers to inject malicious scripts that persist and execute when other users view affected pages, potentially compromising user data and application integrity. The CVSS 3.1 base score is 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope change, and impacts on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability can lead to execution of arbitrary scripts in the context of affected users, potentially resulting in theft of sensitive information, session hijacking, or disruption of application availability. The impact affects confidentiality, integrity, and availability at a low level each, as indicated by the CVSS vector. There are no reports of active exploitation in the wild at this time.

No official patch or remediation information is currently available for this vulnerability. Users of the wpion Live css plugin should monitor the vendor's advisories for updates and apply any future patches promptly. In the meantime, consider restricting access to the plugin's functionality or disabling it if feasible to reduce exposure.