CVE-2006-0188: Squirrelmail

Medium severity, CVSS 4.3. EPSS: 2.1% chance of exploitation in the next 30 days.

webmail.php in SquirrelMail 1.4.0 to 1.4.5 allows remote attackers to inject arbitrary web pages into the right frame via a URL in the right_frame parameter. NOTE: this has been called a cross-site scripting (XSS) issue, but it is different than what is normally identified as XSS.

Affected products

• Squirrelmail Squirrelmail: version 1.4 only; version 1.4.1 only; version 1.4.2 only; version 1.4.3 only; version 1.4.3_r3 only; version 1.4.3_rc1 only; …

Published 2006-02-24. Last modified 2026-06-16.