SP LMS (com_splms) < 4.1.4 by JoomShaper deserializes user-controlled cookie data without validation, enabling an unauthenticated remote attacker to execute arbitrary code on the server.
Exploitability
AV:NAC:LAT:PPR:NUI:NVulnerable System
VC:HVI:HVA:HSubsequent System
SC:HSI:HSA:H9.5/CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HSerialization