views/switch.py in django-grappelli (aka Django Grappelli) before 2.15.2 attempts to prevent external redirection with startswith("/") but this does not consider a protocol-relative URL (e.g., //example.com) attack.
CVSS 3.1MEDIUM 6.1·Network·No auth·User interaction·EPSS 0.00555·Published 2023-10-22·Fixed in 2.15.2CWE-601
