The sonalsinha21 SKT Skill Bar plugin versions up to 2.3 suffer from a stored cross-site scripting vulnerability due to improper input neutralization during web page generation. This flaw allows an attacker with low privileges to inject malicious scripts that are stored and later executed in the context of other users' browsers, potentially leading to partial confidentiality, integrity, and availability impacts. The CVSS 3.1 vector indicates network attack vector, low attack complexity, low privileges required, user interaction required, and scope changed with low impact on confidentiality, integrity, and availability.

Successful exploitation can lead to execution of arbitrary scripts in the context of affected users, potentially resulting in partial disclosure of sensitive information, modification of data, or disruption of service. The impact is rated medium based on the CVSS score of 6.5. 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 available, users should consider disabling or removing the SKT Skill Bar plugin if feasible. Applying web application firewall (WAF) rules to detect and block XSS payloads may provide temporary mitigation. Avoid granting unnecessary privileges to users who can input data into the plugin.