CVE-2015-2171: Slimframework Slim

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

Middleware/SessionCookie.php in Slim before 2.6.0 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via crafted session data.

Affected products

• Slimframework Slim: up to and including 2.5.0

Published 2015-03-30. Last modified 2026-06-17.