According to the vulnerability disclosure, an attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. The attacker must entice an unsuspecting user to follow a malicious URI. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks.
All versions prior to phpMyAdmin 126.96.36.199 and 188.8.131.52 are vulnerable. Updates are available to fix this issue.