phpMyAdmin: Cross-site scripting vulnerability

Background

phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL databases from a web-browser.

Description

Oriol Torrent Santiago has discovered that phpMyAdmin fails to validate input to the “convcharset” variable, rendering it vulnerable to cross-site scripting attacks.

Impact

By sending a specially-crafted request, an attacker can inject and execute malicious script code, potentially compromising the victim’s browser.

Workaround

There is no known workaround at this time.

Resolution

All phpMyAdmin users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-db/phpmyadmin-2.6.2_rc1"