Critical (9.8) in sitos sitos six. EPSS 1.9% chance of exploitation in the next 30 days.
SITOS six Build v6.2.1 allows an attacker to inject arbitrary PHP commands. As a result, an attacker can compromise the running server and execute system commands in the context of the web user.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)